Tray carriage turnover equipment

Abstract

The utility model discloses a pallet truck turnover device which comprises a power-assisted manipulator, a turnover clamp is installed on the power-assisted manipulator, the turnover clamp comprises a vertical arm, a turnover power assembly, a clamp bottom frame, a movable clamping arm and a fixed clamping arm, the upper end of the vertical arm is fixedly connected with the power-assisted manipulator, the turnover power assembly is installed on the lower portion of the vertical arm, and the movable clamping arm is installed on the lower portion of the vertical arm. The fixture bottom frame is installed on an output shaft of the turnover power assembly, the fixed clamping arm is fixedly arranged on the fixture bottom frame, the movable clamping arm is movably installed on the fixture bottom frame, and a movable clamping arm driving device is further arranged on the fixture bottom frame. According to the pallet truck turnover device, the turnover clamp can be used for clamping the pallet trucks and completing turnover work, under the cooperation of the assistance mechanical arm, the two pallet trucks can be stacked, the space is fully utilized, and the transportation efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to a pallet truck tipping device. Background Technology

[0002] Pallet trucks are widely used in the industrial vehicle sector, primarily for short-distance handling, stacking, and loading / unloading of goods. They are suitable for industries requiring efficient and flexible handling of palletized goods. Due to their high cost-effectiveness, they are frequently purchased in bulk.

[0003] The common method of shipping pallet trucks in the market is to place each truck individually on a pallet and then ship it using a flatbed truck or container. This method results in wasted space and high shipping costs because the irregular shape of pallet trucks makes them difficult to stack. Utility Model Content

[0004] The purpose of this invention is to provide a pallet truck tipping device to solve the technical problems in the prior art.

[0005] This utility model provides a pallet truck tilting device, including a power-assisted manipulator. The power-assisted manipulator is equipped with a tilting gripper. The tilting gripper includes a vertical arm, a tilting power assembly, a gripper base frame, a movable gripper arm, and a fixed gripper arm. The upper end of the vertical arm is fixedly connected to the power-assisted manipulator. The tilting power assembly is installed on the lower part of the vertical arm. The gripper base frame is installed on the output shaft of the tilting power assembly. The fixed gripper arm is fixed on the gripper base frame. The movable gripper arm is movably installed on the gripper base frame. The gripper base frame is also provided with a movable gripper arm drive device.

[0006] In the aforementioned pallet truck tipping device, preferably, an operating handle is fixed on the vertical arm, and a controller is installed on the left and right handles of the operating handle, respectively.

[0007] In the aforementioned pallet truck tipping device, preferably, the tipping power assembly consists of a motor and a reducer. The motor is fixedly connected to the reducer, the output shaft of the motor is connected to the reducer, the reducer is fixed to the vertical arm by a bolt assembly, and the vertical arm has an output shaft mounting hole in a direction perpendicular to its axis. The output shaft of the reducer passes through the output shaft mounting hole and is fixedly connected to the middle of the clamp bottom frame.

[0008] In the aforementioned pallet truck tipping device, preferably, the fixed clamping arm is fixed to one end of the clamp base frame, and two parallel slide rails are fixed on the clamp base frame. A slider is slidably installed on each of the two slide rails, and the movable clamping arm is fixedly connected to the two sliders.

[0009] In the aforementioned pallet truck tipping device, preferably, the movable clamping arm drive device includes a cylinder and a connecting rod, one end of the connecting rod is connected to the cylinder, the other end of the connecting rod is connected to the movable clamping arm, and the cylinder is fixed on the clamp base frame.

[0010] In the aforementioned pallet truck tipping device, preferably, the movable clamping arm and the fixed clamping arm are symmetrical structures, each including a clamping arm body, a mechanical limiting block and a limiting rod. Two mechanical limiting blocks are fixed at the end of the clamping arm body, and a long strip-shaped mounting groove is opened on the clamping arm body. One end of the limiting rod has a threaded post, and the threaded post on the limiting rod passes through the long strip-shaped mounting groove and is threadedly connected to the limiting nut.

[0011] In the aforementioned pallet truck tipping device, preferably, the assistive manipulator includes a fixed support column, a balancing cylinder, a cantilever, and a movable support column. The fixed support column has a hollow structure. The lower end of the movable support column is rotatably connected to the upper end of the fixed support column via a bearing. The cantilever is mounted on the upper end of the movable support column via a rotating shaft. A mounting bracket is provided on the movable support column. The lower end of the balancing cylinder is connected to the mounting bracket via a rotating shaft. The telescopic end of the balancing cylinder is connected to the cantilever via a rotating shaft. A counterweight is provided on the cantilever.

[0012] In the aforementioned pallet truck tipping device, preferably, an air storage tank and an air control box are also fixed on the movable support column, and the air storage tank and the balance cylinder are respectively connected to the air control box through air pipes.

[0013] Compared with existing technologies, this utility model includes a assisted robotic arm with a flipping gripper mounted on it. The flipping gripper includes a vertical arm, a flipping power assembly, a gripper base frame, a movable gripping arm, and a fixed gripping arm. The upper end of the vertical arm is fixedly connected to the assisted robotic arm, the flipping power assembly is mounted on the lower part of the vertical arm, the gripper base frame is mounted on the output shaft of the flipping power assembly, the fixed gripping arm is fixed to the gripper base frame, and the movable gripping arm is movably mounted on the gripper base frame. A drive device for the movable gripping arm is also provided on the gripper base frame. This utility model can grip and flip pallet trucks using the flipping gripper. With the assistance of the assisted robotic arm, two pallet trucks can be stacked together using a material box, effectively solving the problem of pallet trucks not being stackable in existing technologies. This allows more pallet trucks to be accommodated per unit volume, reducing packaging and shipping costs. This utility model uses the assisted robotic arm and flipping gripper to package pallet trucks, eliminating manual handling, reducing labor intensity, and improving packaging efficiency. Attached Figure Description

[0014] Figure 1 This is a reference diagram showing the usage state of this utility model;

[0015] Figure 2It is an isometric drawing of a power-assisted robotic arm;

[0016] Figure 3 It is an isometric view of the flipping fixture;

[0017] Figure 4 It is an isometric view of the operating handle;

[0018] Figure 5 It is an isometric view of the movable clamping arm and the fixed clamping arm;

[0019] Figure 6 It is an isometric view of the pallet;

[0020] Figure 7 This is the structural state diagram after step 1 has been completed;

[0021] Figure 8 This is the structural state diagram after step 2 has been completed;

[0022] Figure 9 This is the structural state diagram after step 3 is completed.

[0023] Explanation of reference numerals in the attached drawings: 1. Assisted robotic arm; 11. Fixed support column; 12. Air tank; 13. Balance cylinder; 14. Counterweight; 15. Air control box; 16. Cantilever; 17. Lower limit plate; 18. Upper limit plate; 19. Movable support column; 2. Tilting clamp; 21. Vertical arm; 22. Operating handle; 221. Controller; 222. Control button; 222. Tilting power assembly; 23. Clamp base frame; 24. Cylinder; 25. Connecting rod; 251. Slide rail; 26. Slider; 27. Movable clamping arm; 28. Clamping arm body; 281. Mechanical limit block; 282. Limiting rod; 283. Limiting nut; 284. Long strip mounting groove; 285. Adjustment mark; 286. Fixed clamping arm; 29. ​​Pallet; 3. Main roller limit plate; 31. Second support block; 32. Material box; 4. First pallet cart; 5. Second pallet cart; 6. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] Embodiments of this utility model: such as Figures 1-9As shown, a pallet truck tipping device includes a power-assisted manipulator 1, on which a tipping clamp 2 is mounted. The tipping clamp 2 includes a vertical arm 21, a tipping power assembly 23, a clamp base frame 24, a movable clamping arm 28, and a fixed clamping arm 29. The upper end of the vertical arm 21 is fixedly connected to the power-assisted manipulator 1. The tipping power assembly 23 is mounted on the lower part of the vertical arm 21. The clamp base frame 24 is mounted on the output shaft of the tipping power assembly 23. The fixed clamping arm 29 is fixedly mounted on the clamp base frame 24. The movable clamping arm 28 is movably mounted on the clamp base frame 24. The clamp base frame 24 is also provided with a movable clamping arm drive device.

[0026] The movable gripper arm drive device is used to drive the movable gripper arm 28 to move on the fixture base frame 24, thereby changing the distance between the movable gripper arm 28 and the fixed gripper arm 29 to clamp or release the pallet cart. The tilting power assembly 23 is used to adjust the angle of the fixture base frame 24. After the movable gripper arm 28 and the fixed gripper arm 29 clamp the pallet cart, the height of the pallet cart can be raised by the assist manipulator 1, and then the tilting power assembly 23 is used to rotate the fixture base frame 24 by 180°, thereby tilting the pallet cart on the fixture base frame 24 by 180°.

[0027] In this embodiment, specifically, an operating handle 22 is fixedly mounted on the vertical arm 21, and a controller 221 is respectively installed on the left and right armrests of the operating handle 22. The controller 221 is equipped with control buttons 222, the number and functions of which can be set according to requirements. For example, it can be equipped with an up button, a down button, a slow up button, a slow down button, a clamping button, a release button, a flip button, etc. In a preferred embodiment, there are two release buttons, i.e., a dual-control design, with the two release buttons respectively located on the two controllers 221. Only when both hands simultaneously press the release buttons on both controllers 221 will the movable clamping arm drive device drive the movable clamping arm 28 to move, ensuring operational safety.

[0028] Furthermore, the tilting power assembly 23 consists of a motor and a reducer. The motor and reducer are fixedly connected by a bolt assembly. The output shaft of the motor is connected to the reducer, which is fixed to the vertical arm 21 by the bolt assembly. The vertical arm 21 has an output shaft mounting hole perpendicular to its axis. The output shaft of the reducer passes through the output shaft mounting hole and is fixedly connected to the middle of the fixture base frame 24. The motor is electrically connected to the controller 221, and the motor operates when the tilting button is pressed.

[0029] The fixed clamping arm 29 is fixed at one end on the bottom frame 24 of the clamp. Two parallel slide rails 26 are fixed on the bottom frame 24 of the clamp. A slider 27 is slidably installed on each of the two slide rails 26. The movable clamping arm 28 is fixedly connected to the two sliders 27.

[0030] The sliding rail 26 and slider 27 make the movable clamping arm 28 move more smoothly and prevent jamming.

[0031] The movable clamping arm drive device includes a cylinder 25 and a connecting rod 251. The connecting rod 251 is an L-shaped rod. One end of the connecting rod 251 is fixedly connected to the piston rod end of the cylinder 25, and the other end of the connecting rod 251 is fixedly connected to the movable clamping arm 28. The cylinder 25 is fixed to the clamping base frame 24 by a bolt assembly.

[0032] In this embodiment, the vertical arm 21 is equipped with a gas interruption protection device. This device prevents the piston rod of the cylinder 25 from moving in the event of a sudden gas interruption. Even if a sudden gas interruption occurs, the movable clamping arm 28 will not move, and the pallet trolley will not fall. The gas interruption protection device is an existing product and can be purchased directly. It is not shown in the figure.

[0033] Furthermore, the movable clamping arm 28 and the fixed clamping arm 29 are symmetrical structures. They both include a clamping arm body 281, a mechanical limiting block 282, and a limiting rod 283. Two mechanical limiting blocks 282 are fixed at the end of the clamping arm body 281. A long strip-shaped mounting groove 285 is opened on the clamping arm body 281. One end of the limiting rod 283 has a threaded post. The threaded post on the limiting rod 283 passes through the long strip-shaped mounting groove 285 and is threadedly connected to the limiting nut 284.

[0034] Two mechanical limiting blocks 282 at the end of the clamping arm body 281 are used to clamp the forks on the pallet truck, and the limiting rod 283 is used to abut against the outside of the box on the pallet truck to prevent the truck body from slipping during the overturning process. Since the box thickness on different models of pallet trucks is different, the limiting rod 283 is designed to be adjustable. After adjusting the position of the limiting rod 283, tighten the limiting nut 284. In order to achieve quick adjustment, multiple adjustment marks 286 are also provided on the clamping arm body 281 in this embodiment. According to the adjustment marks, the limiting rod 283 can be quickly and accurately moved to the desired position.

[0035] With the mechanical limit blocks 282 and limit rods 283 on the movable clamping arm 28 and the fixed clamping arm 29, the pallet cart will not fall off when it is clamped and rotated.

[0036] Furthermore, the assistive robotic arm 1 includes a fixed support column 11, a balancing cylinder 13, a cantilever 16, and a movable support column 19. The fixed support column 11 has a hollow structure, and a bearing is installed inside the upper end of the fixed support column 11. The lower end of the movable support column 19 is rotatably connected to the upper end of the fixed support column 11 via the bearing. The cantilever 16 is mounted on the upper end of the movable support column 19 via a rotating shaft. A mounting bracket is provided on the movable support column 19. The lower end of the balancing cylinder 13 is connected to the mounting bracket via a rotating shaft, and the telescopic end of the balancing cylinder 13 is connected to the cantilever 16 via a rotating shaft. A counterweight 14 is provided on the cantilever 16. It should be noted that the cantilever 16 can adopt an existing conventional structure, and the required structure of the cantilever 16 can be purchased according to actual needs. The specific structure of the cantilever 16 is not described in detail in this embodiment.

[0037] An air tank 12 and an air control box 15 are also fixed on the movable support 19. The air tank 12 and the balance cylinder 13 are respectively connected to the air control box 15 through air pipes. The air control box 15 is electrically connected to the controller 221.

[0038] Since the movable support column 19 can rotate relative to the fixed support column 11, in order to prevent the automatic rotation of the assistive robot 1 from causing injury to personnel or damage to objects when it is not working, this embodiment preferably has an upper limit plate 18 fixed on the movable support column 19 and a lower limit plate 17 set on the fixed support column 11. Both the upper limit plate 18 and the lower limit plate 17 have several limit holes. When the assistive robot 1 is not working, the upper limit plate 18 and the lower limit plate 17 are connected by a limit rod to prevent the movable support column 19 from rotating.

[0039] Working principle of the assisted manipulator 1: When the corresponding control button is pressed, the controller 221 changes the state of the pneumatic control box 15. The high-pressure gas in the air tank 12 enters the balance cylinder 13 through the pneumatic control box 15, causing the balance cylinder 13 to extend or retract. When the balance cylinder 13 extends, it pushes the cantilever 16, and the end of the cantilever 16 connected to the flipping fixture 2 descends. When the balance cylinder 13 retracts, it pulls the cantilever 16, thereby raising the flipping fixture 2.

[0040] A method for packaging pallet trucks using the aforementioned pallet truck tipping device includes the following steps:

[0041] Step 1: Use the flipping clamp 2 to hold the first pallet cart 5, then use the assisted manipulator 1 to place the first pallet cart 5 on the pallet 3, and then control the flipping clamp 2 to release the first pallet cart 5;

[0042] The specific operation method of step 1 is as follows: the operator holds the operating handle 22 and finely adjusts the position of the assistive manipulator 1 so that the limit rod 283 on the movable clamping arm 28 and the fixed clamping arm 29 are aligned with the positioning hole on the first pallet 5. Then, the clamping button is pressed, the controller 221 controls the cylinder 25 to retract, the movable clamping arm 28 moves closer to the fixed clamping arm 29, clamps the first pallet 5, and then the clamping button is released. At this time, the clamping state is maintained.

[0043] Then, press the slow-rise button. Controller 221 sends a command to the pneumatic control box 15, causing the balance cylinder 13 to retract. The tilting clamp 2, along with the first pallet trolley 5, is then lifted together. Once the height exceeds that of the pallet 3, release the slow-rise button. The balance cylinder 13 stops retracting. The operator moves the first pallet trolley 5 onto the pallet 3 using the operating handle 22. The pallet 3 has two main roller limit plates 31. By pressing the slow-fall button, the balance cylinder 13 extends, and the first pallet trolley 5 slowly falls onto the pallet 3. The two main roller limit plates 31 on the pallet 3 then restrain the main rollers on the first pallet trolley 5. Please refer to the following for the current status. Figure 7 .

[0044] Then, press the release buttons on both controllers 221 simultaneously with both hands. The cylinder 25 extends, and the movable clamping arm 28 moves away from the fixed clamping arm 29, thereby releasing the first pallet cart 5.

[0045] Step 2: Place a material box 4 on the outriggers of the first pallet truck 5, put the two sets of pallet truck accessories into the material box 4, then close the top cover of the material box and fix the top cover to the material box 4. Please refer to the following for the current state. Figure 8 Pallet truck accessories include the pallet truck battery, pallet truck cover, charger, and pallet truck handle. The material bin 4 is equipped with partitions, allowing different accessories to be placed in different areas to prevent collisions. All pallet truck accessories are individually wrapped in bubble wrap for shock absorption and impact protection.

[0046] Step 3: Use the flipping clamp 2 to hold the second pallet cart 6, use the assisted robot arm 1 to lift the second pallet cart 6 to a preset height, then use the flipping clamp 2 to flip it 180°, use the assisted robot arm 1 to place the second pallet cart 6 on the material box 4, use the packing strap to fix it, and then use the flipping clamp 2 to release the second pallet cart 6.

[0047] The specific operation method of step 3 is to manually adjust the position of the flipping clamp 2 so that the limit rod 283 on the movable clamp arm 28 and the fixed clamp arm 29 are aligned with the box on the second pallet cart 6. Then press the clamping button, the controller 221 controls the cylinder 25 to retract, the movable clamp arm 28 moves closer to the fixed clamp arm 29, clamps the second pallet cart 6, and then releases the clamping button. At this time, the clamping state is maintained.

[0048] Pressing the "Up" button sends a command to the pneumatic control box 15, causing the balance cylinder 13 to retract rapidly, thus quickly lifting the second pallet trolley 6 to a preset height. Once the preset height is reached, the "Up" button is released. Then, pressing the "Tilting" button activates the tilting power assembly 23, causing the second pallet trolley 6 to tilt 180°. Releasing the "Tilting" button stops the tilting power assembly 23. The operator then moves the second pallet trolley 6 to directly above the material box 4 using the operating handle 22, and presses the "Slow Descending" button, causing the second pallet trolley 6 to slowly descend onto the material box 4. The forks of the second pallet trolley 6 are in contact with the top cover of the material box. A second support block 32 is provided on the pallet 3, and the body of the second pallet trolley 6 abuts against the second support block 32. The current state is as follows: Figure 9 .

[0049] After securing the second pallet 6 to the hopper 4, the first pallet 5, and the pallet 3 with strapping, press the release buttons on the two controllers 221 simultaneously with both hands. The cylinder 25 extends, and the movable clamping arm 28 moves away from the fixed clamping arm 29, thereby releasing the second pallet 6.

[0050] Step 4: Use bubble wrap to wrap and secure the first pallet cart 5, the second pallet cart 6, the material box 4, and the pallet as a whole.

[0051] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.

Claims

1. A pallet truck tipping device, comprising a power-assisted robotic arm (1), characterized in that: The assistive manipulator (1) is equipped with a flipping clamp (2), which includes a vertical arm (21), a flipping power assembly (23), a clamp base frame (24), a movable clamping arm (28), and a fixed clamping arm (29). The upper end of the vertical arm (21) is fixedly connected to the assistive manipulator (1). The flipping power assembly (23) is installed on the lower part of the vertical arm (21). The clamp base frame (24) is installed on the output shaft of the flipping power assembly (23). The fixed clamping arm (29) is fixed on the clamp base frame (24). The movable clamping arm (28) is movably installed on the clamp base frame (24). The clamp base frame (24) is also provided with a movable clamping arm drive device.

2. The pallet truck tipping device according to claim 1, characterized in that: An operating handle (22) is fixed on the vertical arm (21), and a controller (221) is installed on the left and right armrests of the operating handle (22).

3. The pallet truck tipping device according to claim 1, characterized in that: The flipping power assembly (23) consists of a motor and a reducer. The motor is fixedly connected to the reducer, and the output shaft of the motor is connected to the reducer. The reducer is fixed to the vertical arm (21) by bolt assembly. The vertical arm (21) has an output shaft mounting hole in a direction perpendicular to its axis. The output shaft of the reducer passes through the output shaft mounting hole and is fixedly connected to the middle of the fixture bottom frame (24).

4. The pallet truck tipping device according to claim 1 or 3, characterized in that: The fixed clamping arm (29) is fixed at one end on the bottom frame (24) of the clamp. Two parallel slide rails (26) are fixed on the bottom frame (24). A slider (27) is slidably installed on each of the two slide rails (26). The movable clamping arm (28) is fixedly connected to the two sliders (27).

5. The pallet truck tipping device according to claim 4, characterized in that: The movable clamping arm drive device includes a cylinder (25) and a connecting rod (251). One end of the connecting rod (251) is connected to the cylinder (25), and the other end of the connecting rod (251) is connected to the movable clamping arm (28). The cylinder (25) is fixed on the clamp base frame (24).

6. The pallet truck tipping device according to claim 5, characterized in that: The movable clamping arm (28) and the fixed clamping arm (29) are symmetrical structures. They both include a clamping arm body (281), a mechanical limiting block (282), and a limiting rod (283). Two mechanical limiting blocks (282) are fixed at the end of the clamping arm body (281). A long strip-shaped mounting groove (285) is opened on the clamping arm body (281). One end of the limiting rod (283) has a threaded post. The threaded post on the limiting rod (283) passes through the long strip-shaped mounting groove (285) and is threadedly connected to the limiting nut (284).

7. The pallet truck tipping device according to claim 6, characterized in that: The power-assisted manipulator (1) includes a fixed support column (11), a balancing cylinder (13), a cantilever (16), and a movable support column (19). The fixed support column (11) has a hollow structure. The lower end of the movable support column (19) is rotatably connected to the upper end of the fixed support column (11) through a bearing. The cantilever (16) is mounted on the upper end of the movable support column (19) through a rotating shaft. The movable support column (19) is provided with a mounting bracket. The lower end of the balancing cylinder (13) is connected to the mounting bracket through a rotating shaft. The telescopic end of the balancing cylinder (13) is connected to the cantilever (16) through a rotating shaft. The cantilever (16) is provided with a counterweight (14).

8. The pallet truck tipping device according to claim 7, characterized in that: The movable support (19) is also fixed with an air tank (12) and an air control box (15). The air tank (12) and the balance cylinder (13) are respectively connected to the air control box (15) through air pipes.

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