An adjustable suction cup

Abstract

This utility model discloses an adjustable suction cup, relating to the field of circuit board technology. It includes a central fixed plate, with a second servo motor fixedly connected to one side of the central fixed plate. The output end of the second servo motor is connected to a cross commutator, and symmetrically arranged transverse adjusting ball screws are fixedly connected to both ends of the cross commutator. A transverse adjusting ball nut is threaded onto each transverse adjusting ball screw, and a left-right transverse sliding connecting plate is fixedly connected to the end of the transverse adjusting ball nut away from the transverse adjusting ball screw. A first transverse double-layer telescopic slide rail is fixedly connected to both the upper and lower ends of the left-right transverse sliding connecting plate. This utility model automatically adjusts the size of the suction cup according to the size difference of the flexible circuit board, ensuring stable adsorption. It enhances the ease of use of the suction cup and significantly reduces the investment of manpower and resources. At its smallest size, the suction cup has no extra protruding parts around its edges, allowing it to be used in space-constrained locations, thus having a wide range of applications.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, specifically to an adjustable suction cup. Background Technology

[0002] In today's rapidly developing electronics and information industry, flexible circuit boards (PCBs) are widely used in various portable electronic products such as smartphones, tablets, and wearable devices due to their advantages of being lightweight, thin, flexible, and impact-resistant. As electronic products continue to evolve towards miniaturization and high precision, higher requirements are placed on the manufacturing precision and production efficiency of PCBs. In the production and assembly of PCBs, automated equipment is needed to complete operations such as handling and positioning. Among these, the suction cup mechanism used to adsorb and transfer PCBs is a key actuator in the automated production line, and its performance directly affects the processing quality and production efficiency of PCBs.

[0003] In existing technologies, most suction cup mechanisms for flexible circuit boards adopt a fixed structure design, which significantly limits the position adjustment capability of the suction nozzle. On the one hand, for flexible circuit boards of different sizes, existing suction cup mechanisms cannot achieve flexible and precise adjustment of the lateral and longitudinal positions of the suction nozzle. It usually requires manual replacement of suction cup components of different specifications or complex mechanical debugging of the equipment. This process not only consumes a lot of manpower and time, but is also prone to affecting the adsorption positioning accuracy due to debugging errors, resulting in problems such as displacement and wrinkling of the flexible circuit board during the transfer process. On the other hand, existing suction cup mechanisms cannot extend to the edge area of ​​the flexible circuit board. When facing a processing environment with interfering objects, the suction range is easily reduced because the suction nozzle cannot avoid the interfering objects, resulting in uneven distribution of adsorption force, which in turn affects the adsorption stability and may even cause the flexible circuit board to fall off.

[0004] Patent CN216542859U discloses a vacuum suction cup for circuit board production. It comprises a housing, a fixing plate, a pipe, an air extraction pipe, a fixing tube, a connecting plate, screws, a mounting plate, a mounting block, external threads, a fixing block, and internal threads. The pipe is inserted into the fixing tube, and the connecting plate is fixed to the fixing plate using screws, thus completing the installation and fixation of the air extraction pipe. This makes the vacuum suction cup easy to install and fix, and allows for easy replacement of the vacuum suction cup when problems arise.

[0005] However, this patent has the following drawbacks: when adsorbing circuit boards of different sizes, it is necessary to replace the suction cup components of different sizes, and the replacement process is labor-intensive and time-consuming, resulting in low practicality. Utility Model Content

[0006] To address the technical problems in existing technologies, such as the inability to flexibly and precisely adjust the size of the suction cup according to the dimensions of the flexible circuit board, and the difficulty of extending the suction cup to the edge area of ​​the flexible circuit board, resulting in uneven distribution of adsorption force, affecting adsorption stability, and even causing the flexible circuit board to detach, this utility model provides an adjustable suction cup.

[0007] The objective of this utility model can be achieved through the following technical solutions: An adjustable suction cup includes a central fixed plate. A second servo motor is fixedly connected to one side of the central fixed plate. A cross commutator is connected to the output end of the second servo motor. Symmetrically arranged lateral adjusting ball screws are fixedly connected to both ends of the cross commutator. Lateral adjusting ball screws are threaded with lateral adjusting ball nuts. A left and right lateral sliding connecting plate is fixedly connected to the end of the lateral adjusting ball nut away from the lateral adjusting ball screw. A first lateral double-layer telescopic slide rail is fixedly connected to both the upper and lower ends of the left and right lateral sliding connecting plate.

[0008] Furthermore, a linear bearing is connected to the lower end of the left and right lateral sliding connecting plate near the lateral adjusting ball screw. A longitudinal adjusting connecting titanium rod is connected to the lower part of the linear bearing. A second lateral double-layer telescopic slide rail is fixedly connected to the end of the longitudinal adjusting connecting titanium rod away from the linear bearing.

[0009] Furthermore, a first servo motor is fixedly mounted on the side of the intermediate fixed plate away from the second servo motor. The output end of the first servo motor is connected to a longitudinal adjusting ball screw. A longitudinal adjusting ball nut is provided on the longitudinal adjusting ball screw. A longitudinal telescopic slide rail is fixedly connected to the longitudinal telescopic slide rail away from the longitudinal adjusting ball screw. An aluminum plate is fixedly connected between the symmetrically arranged second transverse double-layer telescopic slide rails.

[0010] Furthermore, a limiter is provided on the middle fixed plate, which is distributed on the left and right sides of the middle fixed plate. A sensing plate is provided at the bottom of the middle fixed plate, and the limiter and the sensing plate are connected.

[0011] Furthermore, the left and right transverse connecting plates are fixed with multiple evenly arranged suction nozzles on the side away from the middle fixed plate, and multiple evenly arranged suction nozzles are provided on both the first transverse double-layer telescopic slide rail and the second transverse double-layer telescopic slide rail; a robot arm fixing seat is fixed on the middle fixed plate.

[0012] Furthermore, the second transverse double-layer telescopic slide rail is arranged parallel to the first transverse double-layer telescopic slide rail, and the transverse adjusting ball screw is perpendicular to the middle fixed plate.

[0013] Furthermore, the left and right lateral sliding connecting plate is T-shaped, and a linear bearing is connected to the lower end of the left and right lateral sliding connecting plate near the lateral adjusting ball screw. The lower part of the linear bearing is connected to the longitudinal adjusting connecting titanium rod.

[0014] Furthermore, the two ends of the intermediate fixing plate are fixed to the ventilation connecting rod, and the intermediate fixing plate and the ventilation connecting rod are perpendicular to each other.

[0015] The beneficial effects of this utility model are: This invention uses a second servo motor to provide driving force to the lateral adjusting ball screw. The symmetrically arranged lateral adjusting ball screws rotate, causing the lateral adjusting ball nut to move. This movement of the ball nut causes the left and right lateral sliding connecting plates to move relative to or opposite to each other. This relative or opposite movement of the left and right lateral sliding connecting plates causes the first and second lateral double-layer telescopic slide rails to stretch or shorten. This allows for adjustment of the nozzle position according to the different lengths of the flexible circuit board. The first servo motor provides driving force to the longitudinal adjusting ball screw, causing it to rotate. The longitudinal adjusting ball nut moves, causing the longitudinal telescopic slide rail to extend or shorten. This extension or shortening of the longitudinal telescopic slide rail then causes the second transverse double-layer telescopic slide rail to move upwards or downwards. This allows for adjustment of the suction nozzle position according to the different heights of the flexible circuit board. During the adsorption of the flexible circuit board, the suction cup can automatically adjust its size according to its dimensions, ensuring stable adsorption. This enhances the ease of use of the suction cup mechanism, improves adsorption efficiency, and significantly reduces the investment of manpower and resources. At its smallest size, the suction cup has no extra protruding parts around its edges, making it suitable for applications with limited space and a wide range of applications. Attached Figure Description

[0016] Figure 1 This is a front view of the overall structure of this utility model; Figure 2 This is a side view of the overall structure of this utility model; Figure 3 This is a front view of the middle fixing plate of this utility model; Figure 4 This is a side view of the middle fixing plate of this utility model.

[0017] The attached diagram lists the components represented by each number as follows: 1. Horizontal sliding connecting plate; 2. Horizontal adjusting ball nut; 201. Vertical adjusting ball nut; 3. Horizontal adjusting ball screw; 4. Limiter; 5. Linear bearing; 6. Vertical adjusting connecting titanium rod; 7. First horizontal double-layer telescopic slide rail; 701. Second horizontal double-layer telescopic slide rail; 8. Induction plate; 9. Vertical telescopic slide rail; 10. First servo motor; 1001. Second servo motor; 11. Vertical adjusting ball screw; 12. Cross reversing device; 13. Robotic arm mounting base; 14. Ventilation connecting rod; 15. Intermediate fixing plate; 16. Suction nozzle; 17. Aluminum plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-4 As shown, an adjustable suction cup includes a middle fixing plate 15, with both ends of the middle fixing plate 15 fixed to the ventilation connecting rod 14, and the middle fixing plate 15 and the ventilation connecting rod 14 are perpendicularly distributed.

[0020] A second servo motor 1001 is fixedly connected to one side of the intermediate fixed plate 15. A cross commutator 12 is connected to the output end of the second servo motor 1001. A symmetrically arranged transverse adjusting ball screw 3 is fixedly connected to both ends of the cross commutator 12. The transverse adjusting ball screw 3 is perpendicular to the intermediate fixed plate 15.

[0021] A lateral adjusting ball screw 3 is threadedly connected to a lateral adjusting ball nut 2, and a left and right lateral moving connecting plate 1 is fixedly connected to the end of the lateral adjusting ball screw 3 away from the lateral adjusting ball screw 3.

[0022] The left and right transverse connecting plate 1 is T-shaped; the upper and lower ends of the left and right transverse connecting plate 1 are fixedly connected to the first transverse double-layer telescopic slide rail 7, the lower end of the left and right transverse connecting plate 1 near the transverse adjusting ball screw 3 is connected to the linear bearing 5, and the lower part of the linear bearing 5 is connected to the longitudinal adjusting connecting titanium rod 6.

[0023] The end of the longitudinal adjustment connecting titanium rod 6 away from the linear bearing 5 is fixedly connected to a second transverse double-layer telescopic slide rail 701, which is arranged parallel to the first transverse double-layer telescopic slide rail 7.

[0024] The left and right transverse connecting plate 1 has a groove at one end near the linear bearing 5, which facilitates the extension and retraction of the longitudinal adjustment connecting titanium rod 6 within the groove; the left and right transverse connecting plate 1 has a groove at one end near the transverse adjustment ball screw 3, which facilitates the left and right transverse connecting plate 1 to move according to the left and right movement of the transverse adjustment ball nut 2.

[0025] By activating the second servo motor 1001, the second servo motor 1001 provides driving force to the lateral adjustment ball screw 3. The symmetrically arranged lateral adjustment ball screw 3 rotates, which drives the lateral adjustment ball nut 2 to move. The movement of the lateral adjustment ball nut 2 drives the left and right lateral sliding connecting plates 1 to move relative to or opposite to each other. The relative or opposite movement of the left and right lateral sliding connecting plates 1 drives the first lateral double-layer telescopic slide rail 7 and the second lateral double-layer telescopic slide rail 701 to stretch or shorten. Thus, the position of the suction nozzle 16 is adjusted according to the different lengths of the flexible circuit board.

[0026] A limiter 4 is provided on the middle fixing plate 15. The limiter 4 is distributed on the left and right sides of the middle fixing plate 15. A sensor plate 8 is provided at the lower part of the middle fixing plate 15. The limiter 4 is connected to the sensor plate 8. With the setting of the limiter 4 and the sensor plate 8, the size of the flexible circuit board can be adjusted when the nozzle 16 is adjusted.

[0027] A first servo motor 10 is fixedly mounted on the side of the intermediate fixed plate 15 away from the second servo motor 1001. The output end of the first servo motor 10 is connected to a longitudinal adjusting ball screw 11. A longitudinal adjusting ball nut 201 is provided on the longitudinal adjusting ball screw 11. A longitudinal telescopic slide rail 9 is fixedly connected to the longitudinal telescopic slide rail 9 away from the longitudinal adjusting ball screw 11. An aluminum plate 17 is fixedly connected to the end of the longitudinal telescopic slide rail 9 away from the longitudinal adjusting ball screw 11. The aluminum plate 17 is fixedly connected between the symmetrically arranged second transverse double-layer telescopic slide rails 701.

[0028] By activating the first servo motor 10, the first servo motor 10 provides driving force to the longitudinal adjusting ball screw 11, causing the longitudinal adjusting ball screw 11 to rotate. The longitudinal adjusting ball screw 11 drives the longitudinal adjusting ball nut 201 to move, and the movement of the longitudinal adjusting ball nut 201 causes the longitudinal telescopic slide rail 9 to stretch or shorten. The stretching or shortening of the longitudinal telescopic slide rail 9 causes the second transverse double-layer telescopic slide rail 701 to move upward or downward. The upward or downward movement of the second transverse double-layer telescopic slide rail 701 causes the longitudinal adjusting connecting titanium rod 6 to move upward or downward within the left and right transverse connecting plate 1. Thus, the position of the suction nozzle 16 is adjusted according to the different heights of the flexible circuit board.

[0029] The left and right horizontal sliding connecting plate 1 is fixed with a plurality of evenly arranged suction nozzles 16 on the side away from the middle fixed plate 15. The first horizontal double-layer telescopic slide rail 7 and the second horizontal double-layer telescopic slide rail 701 are both provided with a plurality of evenly arranged suction nozzles 16. The middle fixed plate 15 is fixed with a robot arm fixing seat 13, which is installed at the lower part of the second servo motor 1001.

[0030] The robotic arm holds the robotic arm mounting base 13, and then controls the entire suction cup to move between different workstations. During the adsorption of flexible circuit boards, the suction cup can automatically adjust its size according to the size difference to ensure stable adsorption. This enhances the ease of use of the suction cup mechanism, improves adsorption efficiency, and significantly reduces manpower and material input. When the suction cup is at its smallest size, there are no extra protruding parts around it, so it can be used in places with limited space and has a wide range of applications.

[0031] Working principle: First, the position of the suction nozzle 16 is adjusted according to the different sizes of flexible circuit boards: the second servo motor 1001 is started, and its output driving force will act on the lateral adjustment ball screw 3. The lateral adjustment ball screw 3 will rotate under the action of the driving force. During the rotation, the lateral adjustment ball nut 2 that is matched with it will be displaced, thereby driving the left and right lateral connecting plates 1 to move relative to or in opposite directions. This movement is transmitted to the first lateral double-layer telescopic slide rail 7 and the second lateral double-layer telescopic slide rail 701, causing the first lateral double-layer telescopic slide rail 7 and the second lateral double-layer telescopic slide rail 701 to stretch or shorten, and finally realize the adaptive adjustment of the position of the suction nozzle 16 according to the different lengths of the flexible circuit board.

[0032] Then, the first servo motor 10 is started, and the driving force generated by it is transmitted to the longitudinal adjusting ball screw 11, causing the screw to rotate. As the longitudinal adjusting ball screw 11 rotates, the longitudinal adjusting ball nut 201 that cooperates with it will be displaced, thereby causing the longitudinal telescopic slide rail 9 to stretch or shorten. The stretching and contraction of the longitudinal telescopic slide rail 9 will cause the second transverse double-layer telescopic slide rail 701 to move up or down accordingly. This movement will in turn cause the longitudinal adjusting connecting titanium rod 6 to move up and down synchronously within the left and right transverse connecting plate 1, ultimately realizing the adjustment of the position of the nozzle 16 according to the different heights of the flexible circuit board.

[0033] Finally, the robotic arm grips the robotic arm mounting base 13, and then the robotic arm controls the entire suction cup to move the entire suction cup between different workstations.

[0034] During the adsorption of flexible circuit boards, the suction cup can automatically adjust its size according to the size difference of the circuit board to ensure stable adsorption; it enhances the ease of use of the suction cup mechanism, improves adsorption efficiency, and significantly reduces the input of manpower and material resources.

[0035] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An adjustable suction cup, comprising a central fixing plate (15), characterized in that, A second servo motor (1001) is fixedly connected to one side of the intermediate fixed plate (15). A cross commutator (12) is connected to the output end of the second servo motor (1001). A symmetrically arranged transverse adjusting ball screw (3) is fixedly connected to both ends of the cross commutator (12). A transverse adjusting ball nut (2) is threaded onto the transverse adjusting ball screw (3). A left and right transverse sliding connecting plate (1) is fixedly connected to the end of the transverse adjusting ball nut (2) away from the transverse adjusting ball screw (3). A first transverse double-layer telescopic slide rail (7) is fixedly connected to both the upper and lower ends of the left and right transverse sliding connecting plate (1).

2. An adjustable suction cup according to claim 1, characterized in that, The lower end of the left and right transverse connecting plate (1) is connected to a linear bearing (5) near the transverse adjusting ball screw (3). The lower part of the linear bearing (5) is connected to a longitudinal adjusting connecting titanium rod (6). The end of the longitudinal adjusting connecting titanium rod (6) away from the linear bearing (5) is fixedly connected to a second transverse double-layer telescopic slide rail (701).

3. An adjustable suction cup according to claim 2, characterized in that, The middle fixed plate (15) is fixedly provided with a first servo motor (10) on the side away from the second servo motor (1001). The output end of the first servo motor (10) is connected to a longitudinal adjusting ball screw (11). A longitudinal adjusting ball nut (201) is provided on the longitudinal adjusting ball screw (11). A longitudinal telescopic slide rail (9) is fixedly connected to the longitudinal telescopic slide rail (9). An aluminum plate (17) is fixedly connected to the end of the longitudinal telescopic slide rail (9) away from the longitudinal adjusting ball screw (11). The aluminum plate (17) is fixedly connected between the symmetrically arranged second transverse double-layer telescopic slide rails (701).

4. An adjustable suction cup according to claim 1, characterized in that, The intermediate fixing plate (15) is provided with a limiter (4), which is distributed on the left and right sides of the intermediate fixing plate (15). The lower part of the intermediate fixing plate (15) is provided with a sensor plate (8), and the limiter (4) is connected to the sensor plate (8).

5. An adjustable suction cup according to claim 1, characterized in that, The left and right transverse connecting plate (1) is fixed with a plurality of uniformly arranged suction nozzles (16) on the side away from the middle fixed plate (15). The first transverse double-layer telescopic slide rail (7) and the second transverse double-layer telescopic slide rail (701) are both provided with a plurality of uniformly arranged suction nozzles (16); the middle fixed plate (15) is fixed with a robot arm fixing seat (13).

6. An adjustable suction cup according to claim 3, characterized in that, The second transverse double-layer telescopic slide rail (701) is arranged parallel to the first transverse double-layer telescopic slide rail (7), and the transverse adjusting ball screw (3) is perpendicular to the middle fixing plate (15).

7. An adjustable suction cup according to claim 6, characterized in that, The left and right transverse connecting plate (1) is T-shaped. The lower end of the left and right transverse connecting plate (1) is connected to a linear bearing (5) near the transverse adjusting ball screw (3). The lower part of the linear bearing (5) is connected to a longitudinal adjusting connecting titanium rod (6).

8. An adjustable suction cup according to claim 1, characterized in that, The two ends of the intermediate fixing plate (15) are fixed on the ventilation connecting rod (14), and the intermediate fixing plate (15) and the ventilation connecting rod (14) are perpendicular to each other.

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