Rapid clamping device for stacking machine

The hydraulic and motor-driven quick clamping device solves the problem of the non-adjustable gripper length of the palletizer, enabling the simultaneous gripping of multiple items and improving handling efficiency.

CN224116168UActive Publication Date: 2026-04-14SICHUAN BENFAN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The existing clamping device of the palletizer cannot adjust the length of the gripper in the vertical direction, which makes it impossible to grab two or more items at a time, thus affecting the efficiency of goods handling.

Method used

A quick clamping device was designed, which uses a hydraulic rod to move a telescopic column and a fixed rod to change the vertical height, and uses a motor to drive a rotating rod and a gear and rack mechanism to adjust the spacing of the moving frame, so as to clamp goods of different specifications.

Benefits of technology

It enables the simultaneous gripping of multiple stacked goods, improving cargo handling efficiency and adapting to the gripping needs of goods of different specifications.

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Abstract

The utility model discloses a quick clamping device for a stacking machine, and relates to the technical field of transportation equipment, the quick clamping device comprises a clamping disc and a mechanical arm, the two sides of the clamping disc are connected with movable frames, hollow columns are fixed on the bottom walls of the two sides of the movable frames, hydraulic rods are fixed in inner cavities of the tops of the hollow columns, telescopic columns are slidably connected with inner cavities of the bottoms of the hollow columns, and the telescopic columns are connected with the mechanical arm. The top walls of the telescopic columns are fixedly connected with the bottom piston ends of the hydraulic rods, a fixed rod is arranged at the bottom of the movable frame, and the top walls of the two ends of the fixed rod are fixedly connected to the bottom ends of the two telescopic columns correspondingly. According to the clamping device, the hydraulic rod is arranged in the hollow column, so that the fixing rod can extend, the function of changing the height of the fixing rod and the inserting column for grabbing goods in the vertical direction is achieved, and the clamping device can grab two or more stacked goods at a time; the problem that a traditional stacking machine clamping device can only grab one piece of goods at a time is solved, and the goods carrying efficiency can be improved.
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Description

Technical Field

[0001] This utility model relates to the field of transportation equipment technology, specifically a quick clamping device for a palletizer. Background Technology

[0002] A stacking robot is a device used for transportation, stacking, and piling. It is a product of the organic combination of mechanics and computer programs. When transferring goods in a factory, stacking robots are usually used in conjunction with robotic arms to move goods from one location to another, while also performing stacking operations. Stacking robots mainly move and stack goods through clamping and gripping devices.

[0003] Chinese patent CN220297124U discloses a palletizing robot clamping device, which includes a support plate; a hydraulic telescopic rod is horizontally mounted on the support plate, and a bidirectional hydraulic cylinder is horizontally mounted under the side plate. Each of the two working ends of the bidirectional hydraulic cylinder has a hydraulic rod. A main gripper is mounted under the bidirectional hydraulic cylinder, and side grippers are mounted under each of the two hydraulic rods. A hydraulic oil tank is connected to a hydraulic controller via an oil pipe, and the hydraulic controller is connected to the bidirectional hydraulic cylinder via an oil pipe. The hydraulic controller delivers hydraulic oil from the hydraulic oil tank into the bidirectional hydraulic cylinder, causing the hydraulic oil to push the hydraulic rods to extend to both sides. As the hydraulic rods extend, they move the side grippers below them. This allows for adjustment of the gripper spacing according to the size of the goods. Compared to traditional palletizing robot clamping devices, this device is applicable to a wider range of goods volumes and is more convenient to use.

[0004] However, the above-mentioned patent still has certain shortcomings in actual use. Since it can only control the movement of the side gripper to achieve the function of adjusting the gripper spacing of the clamping device according to the size of the goods, it can only grab one item at a time. Since goods are usually stacked one on top of the other, and it cannot adjust the length of the side gripper in the vertical direction, it is not convenient to grab two or more items at a time, which is quite inconvenient. Utility Model Content

[0005] The purpose of this invention is to provide a quick clamping device for a palletizing machine, so as to solve the problem mentioned in the background art that the existing palletizing machine clamping device cannot adjust the length of the gripper in the vertical direction, making it inconvenient to grab two or more goods at one time.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick clamping device for a barcode scanner, comprising a clamping plate and a robotic arm. Movable frames are connected to both sides of the clamping plate. Hollow columns are fixed to the bottom walls of both sides of the movable frames. A hydraulic rod is fixed to the top inner cavity of the hollow column. A telescopic column is slidably connected to the bottom inner cavity of the hollow column. The top wall of the telescopic column is fixedly connected to the bottom piston end of the hydraulic rod. A fixed rod is provided at the bottom of the movable frame. The top walls of both ends of the fixed rod are respectively fixedly connected to the bottom ends of the two telescopic columns. Multiple insertion posts are equidistantly fixed to the inner side wall of the fixed rod.

[0007] Preferably, a connecting plate is provided on the top of the clamping plate, and a connecting column is fixedly connected between the circumferential side wall of the connecting plate and the top wall of the clamping plate. There are four connecting columns, which are arranged in a circumferential array. The robotic arm is fixedly connected to the top wall of the connecting plate.

[0008] Preferably, the bottom surface of the hollow column has two symmetrically arranged limiting grooves, and the top surface of the telescopic column has two symmetrically arranged limiting rods fixed thereon, with the rods of the limiting rods slidably connected in the grooves of the limiting grooves.

[0009] Preferably, the clamping plate has an adjustment cavity inside, and a rotating rod is rotatably connected between the upper and lower inner walls of the adjustment cavity. A drive gear is fixed on the surface of the middle part of the rotating rod, and a motor is fixed on the top wall of the clamping plate. The output end of the motor is connected to the top part of the rotating rod.

[0010] Preferably, both sides of the clamping plate are provided with through holes that communicate with the adjustment cavity, and both sides of the adjustment cavity are provided with moving rods. A rack is fixed to the side wall of the moving rod near the driving gear, and the rack meshes with the driving gear.

[0011] Preferably, the rod body of the movable rod movably passes through the cavity of the through hole, and one end of the movable rod is fixedly connected to the movable frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model sets a hydraulic rod in the hollow column, which drives the telescopic column to move downward, thereby causing the fixed rod to extend downward. This achieves the effect of changing the vertical height of the fixed rod and the insert column for gripping goods, so that the clamping device can grip two or more stacked goods at once, avoiding the problem that the clamping device of the traditional stacking machine can only grip one item at a time, which is beneficial to improving the efficiency of goods handling.

[0014] 2. This utility model uses a motor to drive a rotating rod to rotate, which in turn drives a drive gear to rotate. Under the action of the drive gear meshing with the rack, the two moving rods extend to both sides, thereby changing the distance between the two moving frames and thus the distance between the two fixed rods, thereby enabling the clamping and handling of goods of different sizes. Attached Figure Description

[0015] Figure 1 This is a first-view structural schematic diagram of a quick clamping device for a barcode scanner according to the present invention.

[0016] Figure 2 This is a second-view cross-sectional structural diagram of a quick clamping device for a barcode machine according to the present invention.

[0017] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of a hollow column for a quick clamping device used in a stacking machine according to the present invention.

[0019] In the diagram: 1. Clamping plate; 2. Connecting column; 3. Connecting plate; 4. Robotic arm; 5. Motor; 6. Moving frame; 7. Hollow column; 8. Fixed rod; 9. Inserting column; 10. Adjusting cavity; 11. Rotating rod; 1101. Drive gear; 12. Moving rod; 13. Rack; 14. Through hole; 15. Hydraulic rod; 16. Telescopic column; 17. Limiting groove; 18. Limiting rod. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4This utility model provides a technical solution: a quick clamping device for a stacking machine, including a clamping plate 1 and a robotic arm 4. Movable frames 6 are connected to both sides of the clamping plate 1. Two hollow columns 7 are welded to the front and rear bottom walls of the movable frames 6, respectively. A hydraulic rod 15 is welded to the top inner cavity of the hollow column 7. A telescopic column 16 is slidably connected to the bottom inner cavity of the hollow column 7. The top wall of the telescopic column 16 is welded to the bottom piston end of the hydraulic rod 15, so that the hydraulic rod 15 can drive the telescopic column 16 to move up and down. A fixed rod 8 is located at the bottom of the movable frame 6. The top walls of the front and rear ends of the fixed rod 8 are welded to the bottom ends of the two telescopic columns 16, so that the telescopic columns 16 can move up and down together with the fixed rod 8. Multiple insertion posts 9 are welded equidistantly to the inner wall of the fixed rod 8. The insertion posts 9 are used to insert into the holes of the cargo box itself when gripping the cargo box. The side wall near the center of the clamping cavity of the two fixed rods 8 is the inner wall of the fixed rod 8.

[0022] A connecting plate 3 is positioned on top of the clamping plate 1. Connecting columns 2 are welded between the circumferential sidewall of the connecting plate 3 and the top wall of the clamping plate 1. Four connecting columns 2 are arranged in a circular array. A robotic arm 4 is welded to the top wall of the connecting plate 3, allowing the stacking machine to control the robotic arm 4 to move the clamping device. Two symmetrically arranged limiting grooves 17 are formed on the bottom surface of the hollow column 7. Two symmetrically arranged limiting rods 18 are welded to the top surface of the telescopic column 16. The rods of the limiting rods 18 are slidably connected within the grooves of the limiting grooves 17, thus limiting the telescopic column 16 and preventing it from detaching from the hollow column 7. An adjusting cavity 10 is located inside the clamping plate 1. A rotating rod 11 is rotatably connected between the upper and lower inner walls of the adjusting cavity 10 via bearings. A drive gear 1101 is welded to the middle section of the rotating rod 11. A motor 5 is bolted to the top wall of the clamping plate 1. The output end of the motor 5 is connected to the top section of the rotating rod 11 via a coupling. This is to enable the motor 5 to drive the rotating rod 11 to rotate, thereby controlling the rotation of the drive gear 1101. Through holes 14 communicating with the adjusting cavity 10 are provided on both the left and right side walls of the clamping plate 1. Moving rods 12 are provided on both the front and rear inner cavities of the adjusting cavity 10. A rack 13 is welded to the side wall of the moving rod 12 closest to the drive gear 1101. The rack 13 meshes with the drive gear 1101, so that the rotation of the drive gear 1101 can drive the moving rod 12 to move. The rod body of the movable rod 12 moves through the cavity of the through hole 14, and the end of the movable rod 12 away from the drive gear 1101 is welded to the movable frame 6.

[0023] The motor 5 drives the rotating rod 11 to rotate, which in turn drives the drive gear 1101 to rotate. Under the meshing transmission of the drive gear 1101 and the rack 13, the two moving rods 12 move and extend to both sides, thereby changing the distance between the two moving frames 6 and the distance between the two fixed rods 8. This allows for the clamping and handling of goods of different sizes. By setting a hydraulic rod 15 in the hollow column 7, the hydraulic rod 15 drives the telescopic column 16 to move downward, which in turn causes the fixed rod 8 to extend downward. This changes the vertical height of the fixed rod 8 and the insert column 9 used to grip the goods, allowing the clamping device to grip two or more stacked goods at once. This avoids the problem that traditional stacking machine clamping devices can only grip one item at a time, thus improving the efficiency of goods handling.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "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.

[0025] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick clamping device for a stacking machine, comprising a clamping plate (1) and a robotic arm (4), characterized in that: The clamping plate (1) is connected to a movable frame (6) on both sides. Hollow columns (7) are fixed on the bottom walls of both sides of the movable frame (6). A hydraulic rod (15) is fixed in the top cavity of the hollow column (7). A telescopic column (16) is slidably connected to the bottom cavity of the hollow column (7). The top wall of the telescopic column (16) is fixedly connected to the bottom piston end of the hydraulic rod (15). A fixed rod (8) is provided at the bottom of the movable frame (6). The top walls of the two ends of the fixed rod (8) are respectively fixedly connected to the bottom ends of the two telescopic columns (16). Multiple inserts (9) are fixedly installed at equal intervals on the inner side wall of the fixed rod (8).

2. The quick clamping device for a stacking machine according to claim 1, characterized in that: The clamping plate (1) is provided with a connecting plate (3) on its top. A connecting column (2) is fixedly connected between the circumferential side wall of the connecting plate (3) and the top wall of the clamping plate (1). There are four connecting columns (2), which are arranged in a circumferential array. The robotic arm (4) is fixedly connected to the top wall of the connecting plate (3).

3. The quick clamping device for a stacking machine according to claim 1, characterized in that: The bottom column (7) has two symmetrically arranged limiting grooves (17) and the top column of the telescopic column (16) has two symmetrically arranged limiting rods (18) fixed on its surface. The rods of the limiting rods (18) are slidably connected in the grooves (17).

4. The quick clamping device for a stacking machine according to claim 1, characterized in that: The clamping plate (1) has an adjustment cavity (10) inside. A rotating rod (11) is rotatably connected between the upper and lower inner walls of the adjustment cavity (10). A drive gear (1101) is fixed on the surface of the middle rod of the rotating rod (11). A motor (5) is fixed on the top wall of the clamping plate (1). The output end of the motor (5) is connected to the top rod of the rotating rod (11).

5. The quick clamping device for a stacking machine according to claim 4, characterized in that: Both sides of the clamping plate (1) are provided with through holes (14) that communicate with the adjustment cavity (10). Both sides of the adjustment cavity (10) are provided with moving rods (12). A rack (13) is fixed on the side wall of the moving rod (12) near the drive gear (1101). The rack (13) meshes with the drive gear (1101).

6. The quick clamping device for a stacking machine according to claim 5, characterized in that: The rod of the movable rod (12) moves through the cavity of the through hole (14), and one end of the movable rod (12) is fixedly connected to the movable frame (6).

Citation Information

Patent Citations

  • Clamping device of palletizing robot

    CN220297124U