Integrated mechanical claw with clamping and adsorbing functions

By combining a negative pressure suction cup and a threaded rod design, the mechanical claw integrates clamping and adsorption, solving the problem of insufficient stability of existing mechanical claws, improving the stability and adaptability of workpiece clamping, and reducing the risk of dropping.

CN223802598UActive Publication Date: 2026-01-16TIANJIN UNIV OF SCI & TECH
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Patent Information

Application Number
CN202520232891.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-14
Publication Date
2026-01-16
Estimated Expiration
2035-02-14

AI Technical Summary

Technical Problem

Existing mechanical grippers typically only have a clamping function, and they suffer from insufficient stability and adaptability, which may lead to unreliable gripping of objects and increase the risk of them falling.

Method used

An integrated mechanical claw with clamping and adsorption functions was designed. By combining a negative pressure suction cup and a threaded rod assembly, it can achieve stable clamping and adsorption of workpieces. The negative pressure suction cup is generated by an air pump for limiting the position, and the threaded rod adjusts the position of the clamping plate to adapt to different workpieces.

Benefits of technology

It improves the stability of workpiece clamping, prevents it from falling, enhances protection, adapts to workpieces of different shapes and sizes, and reduces the risk of damage.

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Abstract

The utility model belongs to the technical field of mechanical grippers, and particularly relates to an integrated mechanical gripper with clamping and adsorbing functions, which comprises a frame, threaded holes are symmetrically arranged on the frame, support plates are symmetrically arranged in the frame, threaded rings are fixedly mounted in the support plates, a bidirectional lead screw is rotatably arranged in the frame, and the two-way lead screw is rotatably arranged in the frame. A first motor is fixedly installed in the frame, a connecting assembly is arranged on the supporting plate, and a supporting block is installed on the connecting assembly. According to the integrated mechanical gripper with the clamping and adsorbing functions, the stability of clamping a workpiece by the integrated mechanical gripper with the clamping and adsorbing functions is conveniently improved through the installed air extracting pump and the installed negative pressure suction cup, the air extracting pump works to extract air in an air extracting groove through a pipeline, and air in the negative pressure suction cup is extracted through the air extracting groove; and when the workpiece is clamped, the negative pressure suction cup generates negative pressure, then the position of the workpiece is limited, the workpiece clamping stability is improved, the workpiece is prevented from falling off accidentally, and the protection performance is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical claw technical field, concretely is a kind of integrated mechanical claw with clamping and adsorption function. BACKGROUND

[0002] Integrated mechanical claw with clamping and adsorption function is favored in a variety of application scenarios, combines clamping and adsorption function together, can handle multiple objects in the same time, whether heavy, light or various shapes of objects, without changing tools or devices in different operations, reduce switching time, improve work efficiency, can effectively handle smooth, rough, sharp or irregular objects, low surface requirement, increase application range.

[0003] Patent document CN222115114U discloses a kind of to pull and grab integrated mechanical claw and mechanical arm, "mechanical claw includes connecting shell, connecting shell is hinged with front and rear pull claw, driving motor is fixed in connecting shell, the output end of driving motor is connected with driving gear, driving gear is engaged with transfer gear, transfer gear slides along the axis direction of driving gear by reversing device, transfer gear is engaged with front driven gear and reversing gear, the front half gear of front pull claw is equipped with and can be engaged with transfer gear, rear half gear of rear pull claw is equipped with and can be engaged with transfer gear, front half gear and rear half gear staggered arrangement.This device's mechanical claw uses hinged and gear transmission mode, makes that overall structure is compact, and by gear transmission makes that the action of mechanical claw is more stable and reliable, can also reduce the failure rate of mechanical claw, improve its service life", however, the above-mentioned disclosure of a kind of to pull and grab integrated mechanical claw and mechanical arm, mainly consider to reduce the failure rate of mechanical claw, improve its service life, but do not consider the problem of making clamping and adsorption integration, mechanical claw usually only uses clamping mode to fix, such design has certain limitation, although clamping mode is effective in many scenes, but in some cases, it can not provide enough stability or adaptability, can cause that grabbing is not firm, increase the risk of object falling, in order to overcome these deficiencies, the integration design of combining adsorption and clamping function can provide more flexible and reliable solution, therefore, it is necessary to research a kind of integrated mechanical claw with clamping and adsorption function. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of integrated mechanical claw with clamping and adsorption function to solve the technical problem that mechanical claw only has clamping function in the above background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: A kind of integrated mechanical claw with clamping and adsorption function, including frame, symmetrically arranged screw hole is formed on the frame, support plate is symmetrically arranged in the frame, threaded ring is fixedly installed in the support plate, bidirectional screw rod is rotatably arranged in the frame, and bidirectional screw rod is threadedly connected with threaded ring, No. 1 motor is fixedly installed in the frame, and No. 1 motor output end is fixedly connected with one end of bidirectional screw rod, connection assembly is arranged on the support plate, support block is installed on the connection assembly, No. 2 motor is fixedly installed in the support block, adjusting assembly is arranged on the support block, the support block is connected with support frame, the support frame is fixedly connected with clamping plate, adsorption assembly is arranged in the clamping plate.

[0006] Preferably, the connection assembly includes a limiting ring and a connecting rod, the limiting ring is symmetrically arranged inside the frame, the connecting rod penetrates the limiting ring, and one end of the connecting rod is fixedly connected with the support plate, and the other end of the connecting rod is fixedly connected with the support block.

[0007] Preferably, the adjusting assembly includes a threaded rod and a threaded cylinder, the threaded cylinder is fixedly installed on the support frame, the threaded rod is threadedly connected inside the threaded cylinder, and one end of the threaded rod is fixedly connected with the output end of the No. 2 motor, and the support block is provided with a guide assembly.

[0008] Preferably, the guide assembly includes a guide groove and a guide plate, the guide groove is fixedly installed on the support block, and the guide plate penetrates inside the guide groove, and one end of the guide plate is fixedly connected with the support frame.

[0009] Preferably, the adsorption assembly includes a negative pressure suction cup and an air extraction groove, the negative pressure suction cups are arranged in an array inside the clamping plate, the air extraction groove is inlaid inside the clamping plate, and the negative pressure suction cup is in communication with the air extraction groove.

[0010] Preferably, the frame is fixedly installed with a bellow, the bellow is fixedly installed with a filter plate, the bellow is fixedly installed with a suction pump, and the input end of the suction pump is in communication with the air extraction groove through a pipeline.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] 1. The utility model discloses a suction pump and a negative pressure suction cup are installed to improve the stability of the integrated mechanical claw with clamping and adsorption function on workpiece clamping, the suction pump works to extract the air inside the air extraction groove through the pipeline, the air inside the negative pressure suction cup is extracted through the air extraction groove, which generates negative pressure in the negative pressure suction cup, thereby limiting the position of the workpiece, and improving the stability of the workpiece clamping, avoiding accidental falling of the workpiece, causing damage to the workpiece, and improving the protection.

[0013] 2. The utility model discloses through the threaded rod and threaded bushing of installation convenient adjustment of the position of clamping plate, convenient to the different position of work piece is positioned and clamped, the work of no. 2 motor will drive threaded rod rotation, threaded rod rotates and will make threaded cylinder move, threaded cylinder moves and will drive support frame to move, through the support frame movement can be up and down adjustment of clamping plate position, can be positioned and clamped to the different position of work piece. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is whole structure schematic diagram of the utility model;

[0015] Figure 2 It is frame structure schematic diagram of the utility model;

[0016] Figure 3 It is the utility model Figure 2 A structure amplification schematic diagram;

[0017] Figure 4 It is negative pressure sucking disc structure schematic diagram of the utility model.

[0018] In the drawing: 1, frame;2, threaded hole;3, limit ring;4, connecting rod;5, threaded ring;6, bidirectional screw;7, no. 1 motor;8, support plate;9, support block;10, no. 2 motor;11, threaded rod;12, threaded cylinder;13, support frame;14, guide slot;15, guide plate;16, clamping plate;17, negative pressure sucking disc;18, air extraction groove;19, air bellow;20, filter plate;21, air extraction pump. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0020] Please refer to Figures 1 to 4The utility model provides a kind of integrated mechanical gripper with clamping and adsorption function, including frame 1, symmetrically arranged with threaded hole 2 on frame 1, symmetrically arranged with support plate 8 inside frame 1, fixedly installed with threaded ring 5 inside support plate 8, bidirectional screw rod 6 is rotationally arranged inside frame 1, and bidirectional screw rod 6 is threadedly connected with threaded ring 5, fixedly installed with one motor 7 inside frame 1, and one motor 7 output end is fixedly connected with one end of bidirectional screw rod 6, connection assembly is provided on support plate 8, support block 9 is installed on connection assembly, fixedly installed with second motor 10 inside support block 9, adjustment assembly is provided on support block 9, and adjustment assembly is connected with support frame 13, support frame 13 is fixedly connected with clamping plate 16, adsorption assembly is provided inside clamping plate 16, when integrated mechanical gripper with clamping and adsorption function is used to clamp workpiece, bolt is used by cooperation of threaded hole 2, can frame 1 is fixedly installed on mechanical arm, the position of frame 1 is adjusted by the movement of mechanical arm, to make one motor 7 work and drive bidirectional screw rod 6 rotate after clamping plate 16 moves to the side of workpiece, threaded ring 5 moves when bidirectional screw rod 6 rotates, threaded ring 5 moves and drives support plate 8 to move, support plate 8 moves and drives support block 9 to move through connection assembly, support block 9 moves and drives support frame 13 to move, to drive clamping plate 16 to move through support frame 13, the workpiece of different sizes can be positioned and clamped by clamping plate 16, simultaneously, adsorption assembly moves and generates negative pressure, to further position workpiece, improve the stability of workpiece positioning and clamping, avoid workpiece accidental drop, cause damage to workpiece, improve the protectivity.

[0021] Please refer to Figure 1 and Figure 2 , connection assembly includes limit ring 3 and connecting rod 4, limit ring 3 is symmetrically arranged inside frame 1, connecting rod 4 penetrates limit ring 3, and one end of connecting rod 4 is fixedly connected with support plate 8, the other end of connecting rod 4 is fixedly connected with support block 9, support plate 8 moves and drives connecting rod 4 to move, limit ring 3 guides and limits connecting rod 4, so that connecting rod 4 moves stably, connecting rod 4 moves and drives support block 9 to move stably.

[0022] Please refer to Figure 1 and Figure 2 , adjustment assembly includes threaded rod 11 and threaded cylinder 12, threaded cylinder 12 is fixedly installed on support frame 13, threaded rod 11 is threadedly connected inside threaded cylinder 12, and one end of threaded rod 11 is fixedly connected with second motor 10 output end, guide assembly is provided on support block 9, second motor 10 works and drives threaded rod 11 to rotate, threaded rod 11 rotates and makes threaded cylinder 12 move, threaded cylinder 12 moves and drives support frame 13 to move, the position of clamping plate 16 can be adjusted up and down by the movement of support frame 13, and the workpiece of different positions can be positioned and clamped.

[0023] Please refer toFigure 2 The guide assembly comprises a guide groove 14 and a guide plate 15, the guide groove 14 is fixedly installed on the support block 9, the guide plate 15 is arranged in the guide groove 14, and one end of the guide plate 15 is fixedly connected with the support frame 13; when the support frame 13 moves, the guide plate 15 moves; the guide groove 14 cooperates with the guide plate 15 to guide the support frame 13, so that the support frame 13 moves stably.

[0024] Please refer to Figure 1 and Figure 4 The adsorption assembly comprises a negative pressure suction disc 17 and an air extraction groove 18, the negative pressure suction disc 17 is arranged in the clamping plate 16 in an array, the air extraction groove 18 is embedded in the clamping plate 16, and the negative pressure suction disc 17 is communicated with the air extraction groove 18; the negative pressure suction disc 17 is located on one side of the workpiece to be clamped; when the clamping plate 16 clamps the workpiece, the negative pressure suction disc 17 is attached to the surface of the workpiece; the air extraction groove 18 extracts air in the negative pressure suction disc 17 to generate negative pressure in the negative pressure suction disc 17, thereby limiting the position of the workpiece and improving the stability of clamping the workpiece.

[0025] Please refer to Figure 2 The frame 1 is fixedly installed with a bellow 19, the bellow 19 is fixedly installed with a filter plate 20, and the bellow 19 is fixedly installed with an air extraction pump 21; the input end of the air extraction pump 21 is communicated with the air extraction groove 18 through a pipeline; the air extraction pump 21 extracts air in the air extraction groove 18 through the pipeline; and the filter plate 20 prevents foreign matters from entering the bellow 19.

[0026] Working principle, first of all, the integrated mechanical claw with clamping and adsorption functions is used to clamp the workpiece; the frame 1 is fixedly installed on the mechanical arm through the cooperation of the threaded hole 2 and the bolt; the position of the frame 1 is adjusted through the movement of the mechanical arm, so that the clamping plate 16 moves to one side of the workpiece; the first motor 7 works to drive the bidirectional screw rod 6 to rotate; the bidirectional screw rod 6 rotates to move the threaded ring 5; the threaded ring 5 moves to drive the support plate 8 to move; the support plate 8 moves to drive the connecting rod 4 to move; the limiting ring 3 limits and guides the connecting rod 4 to move stably; the connecting rod 4 moves to drive the support block 9 to move stably; the support block 9 moves to drive the support frame 13 to move; the clamping plate 16 moves through the support frame 13; different sizes of workpieces can be clamped by the clamping plate 16; the air extraction pump 21 extracts air in the air extraction groove 18 through the pipeline; the air extraction groove 18 extracts air in the negative pressure suction disc 17 to generate negative pressure in the negative pressure suction disc 17; the position of the workpiece is limited, thereby improving the stability of clamping the workpiece, preventing the workpiece from falling accidentally and causing damage to the workpiece, and improving the protection.

[0027] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. An integrated mechanical gripper with clamping and adsorbing functions, comprising a frame (1), characterized in that: Symmetrically arranged screw holes (2) are arranged on the frame (1), a support plate (8) is symmetrically arranged inside the frame (1), a threaded ring (5) is fixedly installed inside the support plate (8), a bidirectional screw rod (6) is rotatably arranged inside the frame (1) and is in threaded connection with the threaded ring (5), a first motor (7) is fixedly installed inside the frame (1) and the output end of the first motor (7) is fixedly connected with one end of the bidirectional screw rod (6), a connecting assembly is arranged on the support plate (8), a support block (9) is installed on the connecting assembly, a second motor (10) is fixedly installed inside the support block (9), an adjusting assembly is arranged on the support block (9), the adjusting assembly is connected with a support frame (13), the support frame (13) is fixedly connected with a clamping plate (16), and a suction assembly is arranged inside the clamping plate (16).

2. The integrated mechanical gripper with clamping and adsorbing functions according to claim 1, characterized in that: The connecting assembly comprises a limiting ring (3) and a connecting rod (4), the limiting ring (3) is symmetrically arranged inside the frame (1), the connecting rod (4) penetrates through the limiting ring (3), and one end of the connecting rod (4) is fixedly connected with the support plate (8) and the other end of the connecting rod (4) is fixedly connected with the support block (9).

3. The integrated mechanical gripper with clamping and adsorbing functions according to claim 1, characterized in that: The adjusting assembly comprises a threaded rod (11) and a threaded cylinder (12), the threaded cylinder (12) is fixedly installed on the support frame (13), the threaded rod (11) is in threaded connection inside the threaded cylinder (12), one end of the threaded rod (11) is fixedly connected with the output end of the second motor (10), and a guide assembly is arranged on the support block (9).

4. The integrated mechanical gripper with clamping and adsorbing functions according to claim 3, characterized in that: The guide assembly comprises a guide groove (14) and a guide plate (15), the guide groove (14) is fixedly installed on the support block (9), and the guide plate (15) penetrates inside the guide groove (14) and one end of the guide plate (15) is fixedly connected with the support frame (13).

5. The integrated mechanical gripper with clamping and adsorbing functions according to claim 1, characterized in that: The suction assembly comprises a negative pressure suction disc (17) and an air extraction groove (18), the negative pressure suction disc (17) is arranged in an array inside the clamping plate (16), the air extraction groove (18) is inlaid inside the clamping plate (16), and the negative pressure suction disc (17) is in communication with the air extraction groove (18).

6. The integrated mechanical gripper with clamping and adsorbing functions according to claim 1, characterized in that: A wind box (19) is fixedly installed on the frame (1), a filter plate (20) is fixedly installed on the wind box (19), an air extraction pump (21) is fixedly installed inside the wind box (19), and the input end of the air extraction pump (21) is in communication with the air extraction groove (18) through a pipeline.

Citation Information

Patent Citations

  • Shifting and grabbing integrated mechanical claw and mechanical arm

    CN222115114U