A mechanical hand with suction cups eliminating the vacuum suction effect between the superimposed light surfaces

Abstract

The utility model relates to a sucking disc mechanical hand technical field, especially a kind of sucking disc mechanical hand for eliminating the vacuum adsorption effect between superimposed smooth surface, including linear module, fixed seat powered on linear module, lifting cylinder fixedly installed on fixed seat, movable plate guided and connected below fixed seat and vacuum chuck fixed in movable plate lower end, movable plate is powered connected with lifting cylinder, vibration motor is also provided on movable plate;By adding vibration motor on movable plate, cooperate the collaborative action of vacuum chuck, lifting cylinder and linear module, solve the multi-piece adsorption problem caused by vacuum adsorption effect between superimposed smooth surface aluminum sheet;Wherein, the high-frequency micro-amplitude vibration generated by vibration motor can efficiently break the closed vacuum environment between aluminum sheet, ensure that vacuum chuck only adsorbs single target aluminum sheet, effectively avoids the problems such as material positioning inaccuracy, product scrapping, equipment damage and safety hazard caused by multi-piece adsorption.

Description

Technical Field

[0001] This utility model relates to the field of suction cup robotic arms, and in particular to a suction cup robotic arm that eliminates the vacuum adsorption effect between superimposed smooth surfaces. Background Technology

[0002] In modern automated production, especially in industries such as electronic component manufacturing and automotive parts processing, smooth aluminum sheets are widely used in the production and processing of various products due to their excellent properties such as light weight, high strength, and good conductivity. In the automated handling process of smooth aluminum sheets, suction cup robots, with their advantages of simple structure, convenient operation, and stable adsorption, have become the core equipment for quickly grasping and transferring aluminum sheets, greatly improving production efficiency, reducing manual labor intensity, and playing a significant role in promoting the automation and intelligent development of the production process.

[0003] However, in actual production, when using a traditional suction cup robot to pick up stacked smooth aluminum sheets, the high surface smoothness and flatness of the sheets create enclosed micro-spaces between them. When the suction cup applies suction force to the top sheet, these enclosed micro-spaces create a vacuum, resulting in a significant vacuum adsorption effect. This effect generates strong adsorption forces between adjacent sheets, making it difficult for the traditional suction cup robot to effectively separate the target sheet from the stacked sheets below, often resulting in the simultaneous adsorption of multiple sheets. Therefore, it is necessary to propose an improved technical solution to address these problems. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0005] A suction cup robot that eliminates the vacuum adsorption effect between superimposed smooth surfaces includes a linear module, a fixed base powered to the linear module, a lifting cylinder fixedly mounted on the fixed base, a movable plate guided to the bottom of the fixed base, and a vacuum suction cup fixed to the lower end of the movable plate. The movable plate is powered to the lifting cylinder, and a vibration motor is also provided on the movable plate.

[0006] Preferably, the movable plate has a thick plate portion and a thin plate portion formed at the front end of the thick plate portion. The thick plate portion is guided and connected below the fixed base, and the vacuum suction cup and the vibration motor are both mounted on the thin plate portion.

[0007] Preferably, a right-angle sheet metal is fixed on the thin plate portion, the vibration motor is mounted on the right-angle sheet metal, and the thickness of the right-angle sheet metal is less than the thickness of the thin plate portion.

[0008] Preferably, at least two vacuum suction cups are provided, and at least two vacuum suction cups are installed on the thin plate portion at a position away from the connecting thick plate portion.

[0009] Preferably, a guide rod is fixedly connected to the thick plate portion, and a linear bearing is provided on the fixed seat. The thick plate portion and the fixed seat are guided and connected by the cooperation of the guide rod and the linear bearing.

[0010] Preferably, the fixed base includes a thickened plate that is powered on the linear module, a right-angle seat fixedly mounted on the thickened plate, and a connecting plate fixedly mounted in front of the right-angle seat. The linear bearing and the lifting cylinder are both mounted on the connecting plate.

[0011] Preferably, the thickened plate has a limiting groove that extends through the front and rear ends, and the two sides of the right-angle seat abut against the two sides of the limiting groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are: By adding a vibration motor to the movable plate, in conjunction with the coordinated action of a vacuum suction cup, lifting cylinder, and linear module, the problem of multiple aluminum sheets being adsorbed due to the vacuum adsorption effect between stacked smooth aluminum sheets is solved. The high-frequency, micro-amplitude vibration generated by the vibration motor efficiently breaks the closed vacuum environment between the aluminum sheets, ensuring that the vacuum suction cup adsorbs only a single target aluminum sheet. This effectively avoids problems such as inaccurate material positioning, product scrap, equipment damage, and safety hazards caused by multiple sheets being adsorbed. Furthermore, this solution requires no manual intervention, is fully compatible with automated production processes, improves the stability and efficiency of smooth aluminum sheet handling, and is unaffected by changes in aluminum sheet size, thickness, or number of stacked layers, making it widely applicable. In addition, by using a guiding mechanism, the fixed base applies a guiding constraint force to the movable plate, transferring the vibration force generated by the vibration motor to the fixed base, thereby alleviating the vibration stress on the power end of the lifting cylinder and improving the overall service life to a certain extent.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural schematic diagram of the present invention in use; Figure 2This is a schematic diagram of the structure of this utility model after removing the linear module; Figure 3 This is a structural schematic diagram of the fixed base in this utility model.

[0016] The reference numerals and names in the figure are as follows: Linear module 10, fixed base 20, linear bearing 21, thickened plate 22, right angle base 23, connecting plate 24, limit groove 25, lifting cylinder 30, movable plate 40, thick plate part 41, thin plate part 42, right angle sheet metal 43, guide rod 44, vacuum suction cup 50, vibration motor 60. Detailed Implementation

[0017] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments 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 are within the protection scope of this utility model.

[0018] Please see Figure 1-3 In this embodiment of the invention, a suction cup robot for eliminating the vacuum adsorption effect between overlapping smooth surfaces includes a linear module 10, a fixed base 20 powered to the linear module 10, a lifting cylinder 30 fixedly mounted on the fixed base 20, a movable plate 40 guided to the lower part of the fixed base 20, and a vacuum suction cup 50 fixed to the lower end of the movable plate 40. The movable plate 40 is powered to the lifting cylinder 30, and a vibration motor 60 is also provided on the movable plate 40. When adsorbing smooth aluminum sheets, the linear module 10 drives the fixed base 20 to move directly above the overlapping smooth aluminum sheets. Then, the lifting cylinder 30 starts and pushes the movable plate 40 downward along the guide structure of the fixed base 20, so that the vacuum suction cup 50 at the lower end of the movable plate 40 approaches and adheres to the surface of the uppermost aluminum sheet. After the vacuum system is turned on, the vacuum suction cup 50 generates an adsorption force, firmly adsorbing the target aluminum sheet. At this time, the vibration motor 60 on the movable plate 40 starts synchronously, generating high-frequency micro-vibration and transmitting it to the vacuum suction cup 50 and the adsorbed aluminum sheet. This vibration breaks the vacuum environment formed by the enclosed space between the stacked aluminum sheets, disrupting the vacuum adsorption effect between them. This creates a tiny gap between the target aluminum sheet and the stacked aluminum sheets below, allowing outside air to enter and eliminating the adsorption force between adjacent aluminum sheets. Finally, the lifting cylinder 30 moves the movable plate 40 and the adsorbed single aluminum sheet upwards to reset. Then, the linear module 10 drives the fixed base 20 to move to the designated position, completing the gripping and transfer of the single aluminum sheet. Throughout the process, all components work together to achieve automated and precise single-sheet pick-up.

[0019] By adding a vibration motor 60 to the movable plate 40, and coordinating the actions of the vacuum suction cup 50, the lifting cylinder 30, and the linear module 10, the problem of multiple aluminum sheets being adsorbed due to the vacuum adsorption effect between stacked smooth aluminum sheets is solved. The high-frequency micro-vibration generated by the vibration motor 60 efficiently breaks the closed vacuum environment between the aluminum sheets, ensuring that the vacuum suction cup 50 adsorbs only a single target aluminum sheet, effectively avoiding problems such as inaccurate material positioning, product scrap, equipment damage, and safety hazards caused by multiple sheets being adsorbed. Furthermore, this solution requires no manual intervention, is fully compatible with automated production processes, improves the stability and efficiency of smooth aluminum sheet handling, and is unaffected by changes in aluminum sheet size, thickness, or number of stacked layers, making it widely applicable. In addition, by using a guiding mechanism, the fixed base 20 applies a guiding constraint force to the movable plate 40, transferring the vibration force generated by the vibration motor 60 to the fixed base 20, thereby alleviating the vibration stress on the power end of the lifting cylinder 30 and improving the overall service life to a certain extent.

[0020] Please see Figure 2 Based on the above technical solution, it is further proposed that the movable plate 40 has a thick plate portion 41 and a thin plate portion 42 formed at the front end of the thick plate portion 41. The thick plate portion 41 is guided and connected to the bottom of the fixed base 20, and the vacuum suction cup 50 and the vibration motor 60 are both installed on the thin plate portion 42. The movable plate 40 is designed as a combination structure of the thick plate portion 41 and the thin plate portion 42. The thick plate portion 41 ensures the stability and structural strength of the guide connection with the fixed base 20, and avoids deformation or displacement of the movable plate 40 during lifting and vibration. The thin plate portion 42 is more likely to transmit the high-frequency micro-amplitude vibration generated by the vibration motor 60, reduce the loss of vibration energy in the transmission process, and ensure that the vibration energy acts efficiently on the vacuum suction cup 50 and the adsorbed aluminum sheet, further improving the destructive effect on the vacuum adsorption effect between the aluminum sheets.

[0021] A right-angle sheet metal 43 is fixed on the thin plate portion 42, and the vibration motor 60 is mounted on the right-angle sheet metal 43. The thickness of the right-angle sheet metal 43 is less than the thickness of the thin plate portion 42. By mounting the vibration motor 60 on the right-angle sheet metal 43, and the fact that the thickness of the right-angle sheet metal 43 is less than the thickness of the thin plate portion 42, a stable mounting carrier is provided for the vibration motor 60, avoiding local stress concentration caused by the rigid connection between the motor and the thin plate portion 42. Furthermore, the thinner sheet metal does not excessively weaken the vibration transmission efficiency. At the same time, the right-angle structure makes it easy to adjust the motor position according to the actual installation space, improving the flexibility of the structural layout.

[0022] At least two vacuum suction cups 50 are provided, and at least two vacuum suction cups 50 are installed on the thin plate portion 42 at a position away from the connecting thick plate portion 41; this can enhance the adsorption stability of aluminum sheets, prevent aluminum sheets from tilting or falling off during vibration and transfer, and make the force of vibration acting on the aluminum sheets more balanced, further reducing the probability of multiple sheets being adsorbed.

[0023] Please see Figure 2-3 Based on the above technical solution, it is further proposed that a guide rod 44 be fixedly connected to the thick plate part 41, and a linear bearing 21 be provided on the fixed seat 20. The thick plate part 41 and the fixed seat 20 are guided and connected through the cooperation of the guide rod 44 and the linear bearing 21. The linear bearing 21 has the characteristics of low friction and high precision. The sliding fit structure formed with the guide rod 44 can accurately limit the movement trajectory of the thick plate part 41, ensuring that the movable plate 40 moves smoothly only in the vertical direction under the drive of the lifting cylinder 30. The stable guiding fit can also reduce the vibration transmission of the vibration motor 60 to the fixed seat 20 and the linear module 10 when it is working, avoid high-frequency vibration from affecting the operational stability of other components, further improve the long-term reliable operation capability of the entire robot in automated production, and better adapt to the high-frequency, high-precision handling requirements of smooth aluminum sheets.

[0024] Please see Figure 1 and Figure 3 Based on the above technical solution, it is further proposed that the fixed base 20 includes a thickened plate 22 that is powered on the linear module 10, a right-angle seat 23 that is fixedly installed on the thickened plate 22, and a connecting plate 24 that is fixedly installed in front of the right-angle seat 23. The linear bearing 21 and the lifting cylinder 30 are both installed on the connecting plate 24. The thickened plate 22 is directly powered on the linear module 10. Its thickened structure can enhance the overall load-bearing strength and deformation resistance of the fixed base 20, effectively withstand the force generated by the lifting cylinder 30, the movable plate 40 and the vibration motor 60 during operation, avoid structural deformation of the fixed base 20 due to long-term stress, and ensure the stability of the robot's operation.

[0025] The thickened plate 22 has a limiting groove 25 that runs through the front and rear ends. The two sides of the right-angle seat 23 abut against the two sides of the limiting groove 25. The limiting groove 25 can limit the installation position of the right-angle seat 23, ensure the positioning accuracy of the right-angle seat 23 on the thickened plate 22, and avoid the installation position deviation of the connecting plate 24, linear bearing 21 and lifting cylinder 30 due to the offset of the right-angle seat 23 during subsequent assembly. This ensures the vertical accuracy of the lifting trajectory of the movable plate 40 and the alignment accuracy of the vacuum suction cup 50.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A suction cup robotic arm that eliminates the vacuum adsorption effect between superimposed smooth surfaces, characterized in that, It includes a linear module (10), a fixed base (20) powered on the linear module (10), a lifting cylinder (30) fixedly mounted on the fixed base (20), a movable plate (40) guided and connected below the fixed base (20), and a vacuum suction cup (50) fixed at the lower end of the movable plate (40). The movable plate (40) is powered on the lifting cylinder (30), and a vibration motor (60) is also provided on the movable plate (40).

2. The suction cup manipulator for eliminating the vacuum adsorption effect between superimposed smooth surfaces according to claim 1, characterized in that, The movable plate (40) has a thick plate portion (41) and a thin plate portion (42) formed at the front end of the thick plate portion (41). The thick plate portion (41) is guided and connected below the fixed base (20). The vacuum suction cup (50) and the vibration motor (60) are both mounted on the thin plate portion (42).

3. The suction cup manipulator for eliminating the vacuum adsorption effect between superimposed smooth surfaces according to claim 2, characterized in that, A right-angle sheet metal (43) is fixed on the thin plate part (42), and a vibration motor (60) is mounted on the right-angle sheet metal (43), and the thickness of the right-angle sheet metal (43) is less than the thickness of the thin plate part (42).

4. A suction cup manipulator for eliminating the vacuum adsorption effect between superimposed smooth surfaces according to claim 2, characterized in that, At least two vacuum suction cups (50) are provided, and at least two vacuum suction cups (50) are installed on the thin plate portion (42) at a position away from the connecting thick plate portion (41).

5. A suction cup robotic arm for eliminating the vacuum adsorption effect between superimposed smooth surfaces according to claim 2, characterized in that, A guide rod (44) is fixedly connected to the thick plate (41), and a linear bearing (21) is provided on the fixed seat (20). The thick plate (41) and the fixed seat (20) are guided and connected by the cooperation of the guide rod (44) and the linear bearing (21).

6. A suction cup manipulator for eliminating the vacuum adsorption effect between superimposed smooth surfaces according to claim 5, characterized in that, The fixed base (20) includes a thickened plate (22) that is powered on the linear module (10), a right-angle seat (23) that is fixedly mounted on the thickened plate (22), and a connecting plate (24) that is fixedly mounted in front of the right-angle seat (23). The linear bearing (21) and the lifting cylinder (30) are both mounted on the connecting plate (24).

7. A suction cup manipulator for eliminating the vacuum adsorption effect between superimposed smooth surfaces according to claim 6, characterized in that, The thickened plate (22) has a limiting groove (25) that runs through the front and rear ends, and the two sides of the right angle seat (23) abut against the two sides of the limiting groove (25).

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