Flexible pneumatic clamping jaw with buffering function
By designing the joint between the claw center surface, reserved surface, ring and protruding ring on the flexible pneumatic jaws, combined with positive and negative pressure adjustment, the problem of difficult clamping force is solved, and stable clamping and efficient use of materials are achieved.
Patent Information
- Application Number
- CN202422252380.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-14
AI Technical Summary
The existing flexible pneumatic jaws are difficult to control the clamping force when used, which can easily cause damage to the parts or not clamping and not fit, especially when clamping curved parts, resulting in poor results, resulting in reduced production efficiency.
A flexible pneumatic jaw with buffer is designed. By providing a claw center surface and a reserved surface at the first end of the jaw, and using the cooperation of the ring and the protruding ring, the jaw can be clamped or opened by adjusting the positive and negative pressure, thereby achieving stable clamping of the material.
Through this design, the jaws can clamp the material more stably, improve the clamping stability and use efficiency, avoid slipping and damage of the material during operation, and enhance the installation stability of the jaws.
Smart Images
Figure CN223044570U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of flexible pneumatic grippers, and particularly relates to a flexible pneumatic gripper with buffering. Background Art
[0002] A flexible pneumatic gripper is an innovative automated grasping tool, characterized by its soft pneumatic "fingers" that can adaptively wrap around the target object. This design gives the flexible pneumatic gripper significant advantages when grasping fragile, easily scratched, or irregularly shaped objects. With its unique advantages, the flexible pneumatic gripper has been widely used in the field of industrial automation, especially showing great potential in fine operation scenarios in industries such as food, daily chemicals, medical, and fresh produce.
[0003] Industrial production requires the use of flexible pneumatic grippers. Existing flexible pneumatic grippers usually use two rubber pads for clamping. This method is not easy to control the clamping force. If the force is too large, it is easy to damage the parts. If the force is too small, the clamping is not tight, reducing the use efficiency. At the same time, for curved parts, only one point can be clamped, greatly reducing the production efficiency of the parts.
[0004] Therefore, it is necessary to design and transform the flexible pneumatic gripper to effectively prevent the problem that existing flexible pneumatic grippers usually use two rubber pads for clamping. The outside of the rubber pads is a metal device. This method is not easy to control the clamping force. If the force is too large, it is easy to damage the parts. If the force is too small, the clamping is not tight, reducing the use efficiency. At the same time, for curved parts, only one point can be clamped, greatly reducing the production efficiency of the parts. Summary of the Utility Model
[0005] The utility model provides a flexible pneumatic gripper with buffering to prevent the problem of skewing and falling off when the flexible pneumatic gripper is in use.
[0006] To solve the above technical problems, the technical solution of the utility model is as follows:
[0007] An embodiment of the utility model provides a flexible pneumatic gripper with buffering, comprising:
[0008] A flexible pneumatic gripper, the flexible pneumatic gripper includes a first end and a second end, and the first end is provided with a claw center surface and a reserved surface;
[0009] A circular ring, clamped with the first end;
[0010] In the use state, the elastic modulus of the inner side and the outer side of the flexible pneumatic gripper is different. When positive pressure is provided, the second end of the flexible pneumatic gripper opens outward. When negative pressure is provided, the claw center surface and the reserved surface contract inward to clamp the second end.
[0011] Further, the first end of the flexible pneumatic gripper is cylindrical, hollow inside, and has a stepped hole on its inner surface;
[0012] In the use state, a positive and negative pressure device provides positive and negative pressure inside the flexible pneumatic gripper through the first end.
[0013] Further, a raised ring is provided on the outer surface of the first end.
[0014] Further, an arc-shaped groove is provided on the inner surface of the ring, and the arc-shaped groove is matched with the raised ring;
[0015] In the use state, the arc-shaped groove is clamped with the raised ring.
[0016] Further, the reserved surface is preset with an inclination angle, and the inclination angle inclines from the claw center surface to the outer surface of the first end.
[0017] Further, the second end is two claw tips that can approach or move away from each other.
[0018] Further, a first fingerprint is provided at one end of the second end away from the ring. The first fingerprint is arranged on the inner side of the gripper and is arranged oppositely. The first fingerprint is a groove or a protrusion arranged horizontally.
[0019] Further, a second fingerprint is provided at one end of the second end away from the ring. The second fingerprint is arranged on the inner side of the gripper and is arranged oppositely. The second fingerprint is serrated.
[0020] Further, a third fingerprint is provided at one end of the second end away from the ring. The third fingerprint is arranged on the inner side of the gripper and is arranged oppositely. The third fingerprint is a vertical groove.
[0021] The above solution of the present utility model has at least the following beneficial effects:
[0022] In the present utility model, the flexible pneumatic gripper is ventilated, and the flexible pneumatic gripper is fixed through the raised ring and the arc-shaped groove. By introducing positive and negative pressure into the flexible pneumatic gripper, the flexible pneumatic gripper can be effectively clamped and opened, facilitating the user to use;
[0023] In the present utility model, the gripper of the flexible pneumatic gripper has reserved surfaces on opposite sides. By contracting inwards through the reserved surfaces, a larger scaling space can be provided for the flexible pneumatic gripper, thereby increasing the negative pressure deformation amount and improving the clamping stability of the flexible pneumatic gripper for materials. At the same time, the ring can prevent the flexible pneumatic gripper from shaking in the horizontal direction during operation, further improving the stability of the flexible pneumatic gripper during use. Description of the Drawings
[0024] Figure 1 This is a schematic diagram of the flexible pneumatic gripper of the present utility model;
[0025] Figure 2 This is an exploded schematic diagram of the flexible pneumatic gripper of the present utility model;
[0026] Figure 3 This is a side view of the flexible pneumatic gripper of the present utility model;
[0027] Figure 4 This is a sectional view at position A of the flexible pneumatic gripper of the present utility model;
[0028] Figure 5 This is a schematic diagram of Embodiment 1 of the present utility model;
[0029] Figure 6 This is a schematic diagram of Embodiment 2 of the present utility model;
[0030] Figure 7 This is a schematic diagram of Embodiment 3 of the present utility model.
[0031] Description of reference numerals:
[0032] 1. Flexible pneumatic gripper; 2. Raised ring; 3. Ring; 11. First end; 12. Second end; 14. Reserved surface; 15. Claw center surface; 41. Arc groove; 6. First fingerprint; 7. Second fingerprint; 8. Third fingerprint. Detailed implementation manners
[0033] Hereinafter, exemplary embodiments of the present utility model will be described in more detail with reference to the drawings. Although the exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present utility model can be more thoroughly understood and the scope of the present utility model can be completely conveyed to those skilled in the art.
[0034] As Figures 1 to 2 shown, an embodiment of the present utility model provides a flexible pneumatic gripper with buffering, including:
[0035] A flexible pneumatic gripper 1, the flexible pneumatic gripper 1 includes a first end 11 and a second end 12, and the first end 11 is provided with a claw center surface 15 and a reserved surface 14;
[0036] A ring 3, which is clamped with the first end 11;
[0037] In the use state, the elastic modulus of the inner side and the outer side of the flexible pneumatic gripper 1 is different. When positive pressure is provided, the second end 12 of the flexible pneumatic gripper 1 opens outward, and when negative pressure is provided, the claw center surface 15 and the reserved surface 14 contract inward to clamp the second end 12.
[0038] In the embodiment of the present utility model, through the arrangement of the convex ring and the circular ring, it is convenient to clamp the flexible pneumatic gripper, making the flexible pneumatic gripper more tightly and stably installed during installation, facilitating the user to use. The second end 12 of the flexible pneumatic gripper is made of soft rubber; there is a cavity inside the flexible pneumatic gripper 1, and the elastic modulus of the inner side and the outer side of the flexible pneumatic gripper 1 is different. When positive pressure is provided, the flexible pneumatic gripper 1 opens outward, and when negative pressure is provided, it contracts inward. Through the adjustment of positive pressure and negative pressure, it is convenient to quickly clamp and open the starting gripper, facilitating the user to use; a claw center surface 15 is provided at the center of the first end 11, and reserved surfaces 14 are provided on both sides of the first end 11, and the two reserved surfaces 14 and the claw center surface 15 are in the same plane, so as to provide a larger scaling space for the flexible pneumatic gripper 1, further improving the clamping stability of the flexible pneumatic gripper 1 on the material and increasing the opening angle of the flexible pneumatic gripper 1; the design of the flexible pneumatic gripper combines the structure of the reserved surface and the circular ring, which can effectively prevent the clamped material from slipping during operation, enhancing the overall safety and reducing the risk of material loss; the design of the reserved surface 14 enables the flexible pneumatic gripper to have a larger scaling space during the working process, not only improving the stability of the gripper on the material, but also increasing the opening angle of the gripper, and being able to better adapt to materials of different shapes and sizes; since the flexible pneumatic gripper is made of flexible material, it can absorb a certain amount of impact force during the clamping process, playing a role of shock absorption and buffering, and can effectively avoid damage to the material during the clamping process; the combined design of the convex ring and the circular ring prevents the gripper from skewing or falling off when subjected to a lateral force, making the installation of the flexible pneumatic gripper more tight and stable, increasing the stability.
[0039] As Figures 1 to 4 shown, the first end 11 of the flexible pneumatic gripper 1 is cylindrical and hollow inside, and a stepped hole is provided on the inner surface;
[0040] In the use state, the positive and negative pressure device provides positive and negative pressure inside the flexible pneumatic gripper 1 through the first end 11.
[0041] In the embodiment of the present utility model, the first end 11 of the flexible pneumatic gripper 1 is cylindrical and hollow inside, and a stepped hole with a smaller outer diameter and a larger inner diameter is provided on the inner surface; the cylindrical structure and the hollow design of the first end 11 enable the positive and negative pressure device to effectively transport and discharge gas inside the gripper, and can distribute the air pressure more evenly, ensuring that the gripper can respond quickly when clamping and releasing objects; through the adjustment of positive and negative pressure, the state of the gripper can be accurately controlled. When positive pressure is applied, the second end 12 of the gripper can open outward to adapt to objects of different shapes; when negative pressure is applied, the inner surface of the gripper contracts to achieve stable clamping, and the ability to quickly switch enables the gripper to perform excellently in dynamic operations.
[0042] As Figures 1 to 4As shown, a raised ring 2 is provided on the outer surface of the first end 11 .
[0043] In the embodiment of the utility model, a raised ring 2 is provided on the outer surface of the first end 11 of the flexible pneumatic clamp 1. The raised ring 2 can provide a better clamping effect between the clamp and the circular ring 3, and can effectively prevent the clamp from accidentally falling off or shifting during use, thereby ensuring the stability and safety of the clamping process; the raised ring enhances the structural strength of the clamp, making it less likely to deform or be damaged when subjected to tension or other external forces, which is particularly important for operating the clamp in high-load or dynamic environments; the raised ring 2 can be used as an indicator or grabbing point to facilitate the operator to quickly install and disassemble the clamp. Through simple operations, the staff can easily replace the clamp, thereby improving work efficiency.
[0044] like Figures 1 to 4 As shown, the inner surface of the circular ring 3 is provided with an arc groove 41, and the arc groove 41 matches with the raised ring 2;
[0045] When in use, the arc groove 41 is engaged with the raised ring 2 .
[0046] In the embodiment of the utility model, an arc groove 41 is provided on the inner surface of the circular ring 3, which cooperates with the raised ring 2 on the outer surface of the first end 11 of the flexible pneumatic clamp 1; the cooperation between the arc groove 41 and the raised ring 2 forms a firm clamping structure, which can effectively prevent the clamp from falling off or displacing during use, thereby ensuring the stability and safety of the clamping operation; the shape of the arc groove makes the contact area larger, thereby dispersing the load applied to the clamp, making the clamp more stable when subjected to external forces, and able to handle heavier or irregularly shaped objects without being easily deformed or damaged; by embedding the raised ring 2 into the arc groove 41, the operator can quickly and easily complete the installation and disassembly of the clamp, reducing the complexity of connection and disconnection and improving work efficiency.
[0047] like Figures 1 to 4 As shown, the reserved surface 14 is preset with an inclination angle, and the inclination angle is inclined from the claw core surface 15 to the outer surface of the first end 11.
[0048] In the embodiment of the utility model, the inclined reserved surface 14 optimizes the direction of the force applied during clamping, so that the jaws can distribute the pressure more evenly when clamping an object, thereby reducing damage to the object; the design of the inclined angle can increase the pressure area of the jaws when the jaws are contracted, increase the clamping force of the jaws, thereby enhancing the stability of the clamping and preventing the object from sliding or falling off during the clamping process; the flexible pneumatic jaws have a larger scaling space during the working process, which not only improves the stability of the jaws on the material, but also increases the opening angle of the jaws, so that they can better adapt to materials of different shapes and sizes.
[0049] likeFigures 1 to 4 As shown, the second end is two claw tips that can approach or move away from each other.
[0050] In the embodiment of the present utility model, in the design of the flexible pneumatic gripper 1, the second end 12 is composed of two claw tips that can approach or move away from each other, and the inside of the second end 12 is hollow and communicates with the first end 11. The design of the two claw tips enables the second end 12 to flexibly adjust the clamping width according to the size and shape of the object to be clamped; the hollow design enables the gripper to adjust the positive and negative pressure inside during clamping to form a uniform clamping force, which helps to reduce damage to the object to be clamped, especially when dealing with fragile or sensitive items; by applying positive and negative pressure, the movement of the two claw tips can be controlled. When positive pressure is applied, the claw tips open; when negative pressure is applied, the claw tips contract, improving the convenience and efficiency of use; the two claw tips can form a stable clamping structure when clamping an object, reducing the sliding or flipping of the object during the clamping process and providing better grasping stability.
[0051] In Embodiment 1, as Figures 1 to 5 As shown, one end of the second end 12 away from the ring 3 is provided with a first fingerprint 6. The first fingerprint 6 is arranged on the inner side of the claw tip and is arranged oppositely. The first fingerprint 6 is a groove or protrusion arranged horizontally.
[0052] In the embodiment of the present utility model, in the design of the flexible pneumatic gripper 1, one end of the second end 12 away from the ring 3 is provided with a first fingerprint 6. The first fingerprint 6 is arranged on the inner side of the claw tip and is a horizontally arranged groove or protrusion arranged oppositely; the horizontal groove design of the first fingerprint 6 can increase the friction between the claw tip and the object to be clamped, effectively preventing the sliding or falling off of the object during the clamping process, ensuring that the claw tip can firmly grasp the object during operation; the design of the horizontal groove enables the claw tip to better adapt to horizontally placed objects. The first fingerprint 6 provides an effective grasping effect, enhancing the reliability of clamping; the structure of the first fingerprint 6 as a groove can help disperse the pressure applied to the claw tip, avoiding concentration in a small area, thereby reducing the risk of damage to the object to be clamped; the first fingerprint 6 can be used as a positioning mark to help the operator quickly judge the correct position of the claw tip when clamping an object, improving the accuracy of the clamping process and reducing operation errors; by providing additional friction and grasping mechanisms, the first fingerprint 6 can enhance safety when clamping an object, especially during dynamic operations or when moving an object, ensuring that the object will not accidentally fall.
[0053] In Embodiment 2, as Figures 1 to 6 As shown, one end of the second end 12 away from the ring 3 is provided with a second fingerprint 7. The second fingerprint 7 is arranged on the inner side of the claw tip and is arranged oppositely. The second fingerprint 7 is serrated.
[0054] In the embodiment of the present utility model, in the design of the flexible pneumatic gripper 1, a second fingerprint 7 is provided at one end of the second end 12 away from the circular ring 3. The second fingerprint 7 is arranged on the inner side of the gripper and is oppositely arranged in a serrated shape; the serrated second fingerprint 7 can provide greater friction through its unique shape. When gripping an object, the sharp edges of the serrations can effectively bite the surface of the object, significantly improving the stability of the grip and preventing the object from sliding or falling off; the serrated design enables the gripper to better adapt to various surface features, can provide a consistent gripping effect when handling objects of different materials, and increases the versatility of the gripper; the serrated structure can help disperse the pressure applied to the gripper, avoid excessive pressure in a small area, thereby reducing the risk of damage to the gripped object; the serrated fingerprint design can form a stronger mechanical locking effect when gripping an object, keeping the gripper stable during dynamic operations or movements, and ensuring the safety of the object; through the enhanced gripping force of the serrated design, the gripper can provide higher safety during the gripping process, especially when quickly moving or transporting an object, ensuring that the object will not accidentally fall off.
[0055] In Embodiment 3, as Figures 1 to 7 shown, a third fingerprint 8 is provided at one end of the second end 12 away from the circular ring 3. The third fingerprint 8 is arranged on the inner side of the gripper and is oppositely arranged. The third fingerprint 8 is a vertical groove.
[0056] In the embodiment of the present utility model, in the design of the flexible pneumatic gripper 1, a third fingerprint 8 is provided at one end of the second end 12 away from the circular ring 3. The third fingerprint 8 is arranged on the inner side of the gripper and is in the form of a vertical groove; the design of the vertical groove can provide stronger friction by increasing the contact area between the gripper and the gripped object, and can effectively prevent the object from sliding or falling off during the gripping process, ensuring that the gripper can reliably grasp the object; the vertical groove structure of the third fingerprint 8 enables the gripper to better grip vertical objects, improving the applicability of the gripper; the shape of the vertical groove plays a positioning role, preventing the vertical parts from swinging during gripping, and can form a more secure locking mechanism when gripping an object, enhancing the stability of the grip, which is particularly important during dynamic operations or transporting objects, and helps prevent the object from flipping or slipping during the gripping process; the vertical groove provides clear visual and tactile feedback to the operator, helping them better judge the state and position of the gripper; by providing an additional gripping and locking mechanism, the third fingerprint 8 can enhance safety when gripping an object, especially when quickly moving or transporting an object, ensuring that the object will not accidentally fall off and increasing the safety of the operation.
[0057] Furthermore, fingerprints are provided on the outer surface of the claw tips. The fingerprints can serve as an internal support structure. When clamping an object, they provide additional supporting force to ensure that the clamped object can be firmly held in a predetermined position, avoiding displacement caused by gravity or external forces; reducing the risk of the object falling, thereby improving the safety of the operation.
[0058] It should be further noted that in the embodiments of the present invention described above, the above are the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle described in the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.
Claims
1. A flexible pneumatic gripper with a buffer, characterized in that: include: A flexible pneumatic clamp (1), the flexible pneumatic clamp (1) comprising a first end (11) and a second end (12), the first end (11) being provided with a clamp core surface (15) and a reserved surface (14); A circular ring (3) engaged with the first end (11); When in use, the elastic modulus of the inner side and the outer side of the flexible pneumatic clamp (1) are different. When positive pressure is applied, the second end (12) of the flexible pneumatic clamp (1) opens outwards, and when negative pressure is applied, the jaw core surface (15) and the reserved surface (14) contract inwards to clamp the second end (12).
2. A cushioned flexible pneumatic gripper according to claim 1, characterized in that: The first end (11) of the flexible pneumatic clamp (1) is cylindrical and hollow inside, with a stepped hole provided on the inner surface; When in use, the positive and negative pressure device provides positive and negative pressure in the flexible pneumatic clamp (1) through the first end (11).
3. A cushioned flexible pneumatic gripper according to claim 2, characterized in that: A raised ring (2) is provided on the outer surface of the first end (11).
4. A cushioned flexible pneumatic gripper according to claim 3, characterized in that: The inner surface of the circular ring (3) is provided with an arc-shaped groove (41), and the arc-shaped groove (41) matches the raised ring (2); When in use, the arc-shaped groove (41) is engaged with the raised ring (2).
5. A cushioned flexible pneumatic gripper according to claim 4, characterized in that: The reserved surface (14) is preset with an inclination angle, and the inclination angle is inclined from the claw core surface (15) toward the outer surface of the first end (11).
6. A cushioned flexible pneumatic gripper according to claim 5, characterized in that: The second end (12) is two claw tips that can move closer to or farther away from each other.
7. A cushioned flexible pneumatic gripper according to claim 6, characterized in that: A first fingerprint (6) is provided at one end of the second end (12) away from the ring (3); the first fingerprint (6) is arranged on the inner side of the clamping jaw and is arranged opposite to each other; the first fingerprint (6) is a groove or a protrusion arranged transversely.
8. A cushioned flexible pneumatic gripper according to claim 6, characterized in that: A second fingerprint (7) is provided at one end of the second end (12) away from the ring (3); the second fingerprint (7) is arranged on the inner side of the clamping jaw and is arranged opposite to each other; the second fingerprint (7) is sawtooth-shaped.
9. A cushioned flexible pneumatic gripper according to claim 6, characterized in that: A third fingerprint (8) is provided at one end of the second end (12) away from the ring (3); the third fingerprint (8) is arranged on the inner side of the clamping jaw and is arranged opposite to each other; the third fingerprint (8) is a vertical groove.