Sucking disc for manipulator

Abstract

The utility model provides a sucker for a manipulator, and relates to the technical field of suckers for manipulators. The suction cup for the mechanical arm comprises a shell, a threaded groove is formed in the bottom of the shell, supporting plates are symmetrically installed in the threaded groove in a sliding mode, sliding grooves are formed in the portions, located on the two sides of the shell, of the supporting plates, connecting columns are installed in the sliding grooves in a sliding mode, two locking nuts are installed on the connecting columns in a threaded mode, and the supporting plates are located between the two locking nuts; a limiting nut is fixedly installed at the lower end of the connecting column, the connecting column is sleeved with a spring, the two ends of the spring are tightly welded to the locking nut at the bottommost portion and the limiting nut respectively, and a vacuum suction cup is fixedly installed at the bottom of the connecting column; and the driving assembly is located in the shell and used for driving the two supporting plates to be close to each other or away from each other, a worker can rapidly adjust the distance between the four connecting columns according to the size of a workpiece, the vacuum suction cup clamp does not need to be replaced again, the adaptability is greatly improved, and the cost is reduced.

Description

Technical Field

[0001] This application relates to the technical field of robotic arm suction cups, and more particularly to a suction cup for robotic arms. Background Technology

[0002] A suction cup for robotic arms is an end effector mounted on a robotic arm for gripping and moving workpieces. It primarily uses vacuum adsorption, magnetic adsorption, or other physical forces to fix and transfer workpieces. Widely used in automated production lines, logistics and warehousing, electronics manufacturing, and food processing, it can improve production efficiency, reduce labor costs, and adapt to the gripping needs of workpieces of different shapes and materials. In industrial automation, the suction cup for robotic arms is a key end effector, and its performance directly impacts production efficiency and product quality.

[0003] Currently, the most commonly used robotic gripper is the vacuum suction cup gripper. Existing vacuum suction cup grippers mainly consist of a clamp and several vacuum suction cups fixedly connected to the clamp. This type of vacuum suction cup gripper is often only suitable for gripping a single type of workpiece. When it is necessary to grip workpieces of different sizes, the vacuum suction cup gripper needs to be replaced, which greatly increases the cost. Utility Model Content

[0004] This application provides a suction cup for robotic arms to solve the problem that vacuum suction cup clamps are only suitable for clamping a single type of workpiece. When it is necessary to clamp workpieces of different sizes, the vacuum suction cup clamp needs to be replaced, which greatly increases the cost.

[0005] This application provides a suction cup for a robotic arm, comprising:

[0006] The housing has a threaded groove at its bottom, and a support plate is symmetrically slidably installed in the threaded groove. The support plate has sliding grooves on both sides of the housing, and a connecting column is slidably installed in the sliding grooves. Two locking nuts are threaded on the connecting column, and the support plate is located between the two locking nuts. A limit nut is fixedly installed at the lower end of the connecting column. A spring is sleeved on the connecting column, and the two ends of the spring are tightly welded to the bottom locking nut and the limit nut, respectively. A vacuum suction cup is fixedly installed at the bottom of the connecting column.

[0007] A drive assembly, located within the housing, is used to drive the two support plates closer together or further apart.

[0008] Two sets of air extraction components are located on the housing and are used to extract air from the vacuum suction cup.

[0009] Preferably, the driving component includes:

[0010] A bidirectional threaded rod is rotatably installed in a threaded groove. One end of the bidirectional threaded rod passes through the top of two support plates. A fixing groove is provided inside the housing and on one side of the threaded groove. A motor is fixedly installed in the fixing groove. One end of the motor passes through one side of the fixing groove, extends into the threaded groove, and is coaxially connected to the bidirectional threaded rod.

[0011] Preferably, the output shaft of the motor is rotatably connected to the fixed groove and the threaded groove, and both support plates are threadedly connected to the bidirectional threaded rod.

[0012] Preferably, the air extraction assembly includes:

[0013] Two vacuum pumps are fixedly installed on the top of the housing. Evacuation pipes are fixedly installed on both the front and rear sides of the vacuum pumps. The tail ends of the two extraction pipes are respectively fixed to the top of the corresponding connecting posts, and the connecting posts are connected to the extraction pipes.

[0014] Preferably, a support column is fixedly installed on the top of the housing and between the two vacuum pumps, and a flange is fixedly installed on the top of the support column.

[0015] Preferably, the support column and the flange are integrally formed.

[0016] Preferably, the suction pipe is made of silicone tubing. Beneficial effects

[0017] Considering that it is only suitable for clamping a single type of workpiece, when it is necessary to clamp workpieces of different sizes, the vacuum suction cup fixture needs to be replaced, which greatly increases the cost. However, the operator can quickly adjust the distance between the four connecting columns according to the size of the workpiece, without having to replace the vacuum suction cup fixture, which greatly improves adaptability and reduces costs.

[0018] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more obvious and understandable, specific implementation methods of this application are described below. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of a suction cup for a robotic arm according to the present invention.

[0021] Figure 2 This is a detailed structural diagram of the internal structure of the housing of a suction cup for a robotic arm according to this utility model.

[0022] Figure 3 This is a cross-sectional structural diagram of the housing of a suction cup for a robotic arm according to the present invention.

[0023] Figure 4 This utility model relates to a suction cup for a robotic arm. Figure 1 Enlarged structural diagram at point A in the middle.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Housing; 2. Support plate; 3. Slide groove; 4. Connecting column; 5. Vacuum pump; 6. Support column; 7. Flange; 8. Evacuation pipe; 9. Locking nut; 11. Spring; 12. Limit nut; 13. Vacuum suction cup; 14. Bidirectional threaded rod; 15. Threaded groove; 16. Fixing groove; 17. Motor. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0028] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by fasteners, such as a connection fixed by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0032] This utility model provides, for example Figure 1-4 A suction cup for a robotic arm, as shown, includes:

[0033] The housing 1 has a threaded groove 15 at its bottom. A support plate 2 is symmetrically slidably installed in the threaded groove 15. A sliding groove 3 is provided on the support plate 2 and on both sides of the housing 1. A connecting column 4 is slidably installed in the sliding groove 3. Two locking nuts 9 are threaded on the connecting column 4. The support plate 2 is located between the two locking nuts 9. A limit nut 12 is fixedly installed at the lower end of the connecting column 4. A spring 11 is sleeved on the connecting column 4, and the two ends of the spring 11 are tightly welded to the bottommost locking nut 9 and the limit nut 12, respectively. A vacuum suction cup 13 is fixedly installed at the bottom of the connecting column 4.

[0034] A drive assembly is located inside the housing 1 and is used to drive the two support plates 2 to move closer to or further away from each other.

[0035] Two sets of air extraction components are located on the housing 1 and are used to extract air from the vacuum suction cup 13.

[0036] First, the entire device is fixed to the robotic arm. Then, the drive assembly moves the two support plates 2 within the slide groove 3 until the distance between the two support plates 2 matches the length of the workpiece. Next, the two locking nuts 9 are rotated to move them away from each other, thereby releasing the fixing of the connecting column 4. The operator slides the connecting column 4 within the slide groove 3 according to the width of the workpiece until the distance between the four connecting columns 4 matches the width of the workpiece. Then, the two locking nuts 9 are rotated in the opposite direction, and under the action of the threads, the two locking nuts 9 move closer to each other, thereby re-fixing the connecting column 4 onto the support plate 2. This ensures that the operator can quickly adjust the distance between the four connecting columns 4 according to the size of the workpiece without having to replace the fixture, greatly improving adaptability and reducing costs.

[0037] Subsequently, the robotic arm moves the entire device down until the vacuum suction cup 13 contacts the workpiece surface. When the vacuum suction cup 13 contacts the workpiece, if the surface is uneven, the spring 11 is compressed or stretched, causing the connecting column 4 to float up and down in the slide groove 3, ensuring that the vacuum suction cup 13 is fully attached to the workpiece. The air is extracted from the vacuum suction cup 13 by the air extraction component. As the air is extracted, a negative pressure is formed in the vacuum suction cup 13. The atmospheric pressure presses the workpiece tightly onto the vacuum suction cup 13, and then the robotic arm moves the workpiece to a suitable position.

[0038] The driver components include:

[0039] A bidirectional threaded rod 14 is rotatably installed in a threaded groove 15. One end of the bidirectional threaded rod 14 passes through the top of the two support plates 2. A fixing groove 16 is provided inside the housing 1 and on one side of the threaded groove 15. A motor 17 is fixedly installed in the fixing groove 16. One end of the motor 17 passes through one side of the fixing groove 16, extends into the threaded groove 15, and is coaxially connected to the bidirectional threaded rod 14.

[0040] When the motor 17 is powered on and started, the output shaft of the motor 17 rotates, causing the bidirectional threaded rod 14 to rotate in the threaded groove 15. Under the action of the thread, the support plate 2 moves the connecting column 4 and the vacuum suction cup 13 through the sliding groove 3 until the distance between the two support plates 2 matches the length of the workpiece.

[0041] The output shaft of motor 17 is rotatably connected to fixed groove 16 and threaded groove 15, and both support plates 2 are threadedly connected to bidirectional threaded rod 14.

[0042] In this process, the motor 17 is ensured to operate normally on the fixed slot 16. Under the action of the thread, the bidirectional threaded rod 14 rotates, causing the two support plates 2 to move closer or further apart.

[0043] The air extraction assembly includes:

[0044] Two vacuum pumps 5 are fixedly installed on the top of the housing 1. Evacuation pipes 8 are fixedly installed on the front and rear sides of the vacuum pumps 5. The tail ends of the two extraction pipes 8 are fixed to the top of the corresponding connecting posts 4, and the connecting posts 4 are connected to the extraction pipes 8.

[0045] When the vacuum pump 5 is connected to the power supply and started, the vacuum pump 5 draws air from the vacuum suction cup 13 through the air extraction pipe 8 and the internal channel of the connecting column 4. As the air is drawn out, a negative pressure is formed in the vacuum suction cup 13, and the atmospheric pressure presses the workpiece tightly onto the vacuum suction cup 13.

[0046] A support column 6 is fixedly installed on the top of the housing 1 and between the two vacuum pumps 5, and a flange 7 is fixedly installed on the top of the support column 6.

[0047] The flange 7 ensures that the robot can be fixed to the flange, which greatly improves its adaptability and stability.

[0048] The support column 6 and the flange 7 are integrally formed.

[0049] Among these measures, ensuring the stability of the support column 6 and flange 7 structure is crucial.

[0050] The suction tube 8 is made of silicone tubing.

[0051] Among them, the air extraction pipe 8 is made of silicone hose. Silicone hose has good flexibility to adapt to complex movement paths, is wear-resistant, bend-resistant and not easily damaged, is resistant to high and low temperatures and has strong chemical stability, and has excellent sealing performance to prevent air leakage. At the same time, the lightweight design reduces the overall load.

[0052] Working Principle: When using this type of robotic arm with a suction cup, it is first fixed to the robotic arm via flange 7. Then, the motor 17 is powered on and started. The output shaft of the motor 17 rotates, driving the bidirectional threaded rod 14 to rotate within the threaded groove 15. Under the action of the thread, the support plate 2 moves the connecting column 4 and vacuum suction cup 13 through the sliding groove 3 until the distance between the two support plates 2 matches the length of the workpiece. Then, the two locking nuts 9 are rotated to move them away from each other, thereby releasing the fixation of the connecting column 4. The operator slides the connecting column 4 within the sliding groove 3 according to the width of the workpiece until the distance between the four connecting columns 4 matches the width of the workpiece. Then, the two locking nuts 9 are rotated in the opposite direction. Under the action of the thread, the two locking nuts 9 move closer to each other, thereby re-fixing the connecting column 4 onto the support plate 2. This ensures that the operator can quickly adjust the distance between the four connecting columns 4 according to the size of the workpiece without having to replace the fixture, greatly improving adaptability and reducing costs.

[0053] Subsequently, the motor 17 is turned off, and the entire device is moved down by the robotic arm until the vacuum suction cup 13 contacts the workpiece surface. When the vacuum suction cup 13 contacts the workpiece, if the surface is uneven, the spring 11 is compressed or stretched, causing the connecting column 4 to float up and down in the slide groove 3, ensuring that the vacuum suction cup 13 is fully attached to the workpiece. The vacuum pump 5 is then connected to the power supply and started. The vacuum pump 5 extracts air from the vacuum suction cup 13 through the air extraction pipe 8 and the internal channel of the connecting column 4. As the air is extracted, a negative pressure is formed inside the vacuum suction cup 13. The atmospheric pressure presses the workpiece tightly onto the vacuum suction cup 13, and then the robotic arm moves the workpiece to a suitable position.

[0054] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A suction cup for a robotic arm, characterized in that, include: The housing (1) has a threaded groove (15) at its bottom. A support plate (2) is symmetrically slidably installed in the threaded groove (15). A sliding groove (3) is provided on the support plate (2) and on both sides of the housing (1). A connecting column (4) is slidably installed in the sliding groove (3). Two locking nuts (9) are threaded on the connecting column (4). The support plate (2) is located between the two locking nuts (9). A limit nut (12) is fixedly installed at the lower end of the connecting column (4). A spring (11) is sleeved on the connecting column (4). The two ends of the spring (11) are tightly welded to the bottommost locking nut (9) and the limit nut (12) respectively. A vacuum suction cup (13) is fixedly installed at the bottom of the connecting column (4). A drive assembly located inside the housing (1) and used to drive two support plates (2) to move closer to or further away from each other; Two sets of air extraction components are located on the housing (1) and are used to extract air from the vacuum suction cup (13).

2. The suction cup for a robotic arm according to claim 1, characterized in that: The driving component includes: A bidirectional threaded rod (14) is rotatably installed in a threaded groove (15). One end of the bidirectional threaded rod (14) passes through the top of two support plates (2). A fixing groove (16) is provided in the housing (1) and on one side of the threaded groove (15). A motor (17) is fixedly installed in the fixing groove (16). One end of the motor (17) passes through one side of the fixing groove (16) and extends into the threaded groove (15) and is coaxially connected to the bidirectional threaded rod (14).

3. A suction cup for a robotic arm according to claim 2, characterized in that: The output shaft of the motor (17) is rotatably connected to the fixed groove (16) and the threaded groove (15), and both support plates (2) are threadedly connected to the bidirectional threaded rod (14).

4. A suction cup for a robotic arm according to claim 1, characterized in that: The air extraction assembly includes: Two vacuum pumps (5) are fixedly installed on the top of the housing (1). The front and rear sides of the vacuum pumps (5) are fixedly installed with suction pipes (8). The tail ends of the two suction pipes (8) are respectively fixed to the top of the corresponding connecting column (4). The connecting column (4) is connected to the suction pipe (8).

5. A suction cup for a robotic arm according to claim 1, characterized in that: A support column (6) is fixedly installed on the top of the housing (1) and between the two vacuum pumps (5), and a flange (7) is fixedly installed on the top of the support column (6).

6. A suction cup for a robotic arm according to claim 5, characterized in that: The support column (6) and the flange (7) are integrally formed.

7. A suction cup for a robotic arm according to claim 4, characterized in that: The material of the air extraction pipe (8) is a silicone hose.

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