A support device for lifting and securing a pallet.

Abstract

This utility model discloses a support device for lifting and fixing a pallet, belonging to the technical field of engine pallet fixing, and solves the problem of low positioning accuracy when existing pallets are used to move engine bodies. The support device includes a conveyor platform with a roller conveyor belt for conveying the pallet. Multiple support columns are provided on both sides of the roller conveyor belt, and the support columns are fixed to the support columns by mounting plates. A lifting arm is rotatably mounted at the middle of the multiple support columns via a rotating shaft. A hydraulic cylinder is provided on the mounting plate, with one end rotatably connected to the mounting plate and the other end rotatably connected to one end of the lifting arm. The other end of the lifting arm has a hook. A limiting structure is provided at the top of the support column. This utility model's support device for lifting and fixing a pallet effectively improves the positioning accuracy and support stability of the engine body, and has the characteristics of wide applicability and strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of engine tray fixing technology, and in particular to a support device for lifting and fixing the tray. Background Technology

[0002] To reduce the labor intensity of workers and improve work efficiency, robotic assembly stations are now installed on both sides of the engine production assembly conveyor line. The conveyor line transports the engine block to the robotic assembly station via a branch line. The engine block is placed on a pallet, and the robotic assembly station is equipped with a multi-joint robotic arm for gripping parts and assembling them.

[0003] Assembly using a multi-joint robotic arm requires high positioning accuracy for the engine body. In the past, during manual assembly, personnel would directly position and clamp the engine body pallet on the conveyor line based on their experience. This method has low positioning accuracy and cannot meet the requirements of multi-joint robotic arm assembly. At the same time, the existing method of lifting the pallet is to lift it directly with a cylinder. When the cylinder fails, it is easy to drop the pallet and the machine body directly, which can cause safety accidents. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a support device for lifting and fixing a pallet, which effectively improves the positioning accuracy and support stability of the engine body, and has the characteristics of wide applicability and strong practicality, in order to address the above-mentioned shortcomings of the prior art.

[0005] The technical solution adopted by this utility model is as follows: a support device for lifting and fixing a pallet, including a conveying platform, a roller conveyor belt for conveying the pallet on the conveying platform, multiple support columns on both sides of the roller conveyor belt, the support columns being fixed to the support columns by mounting plates, a lifting arm being rotatably mounted at the middle position of the multiple support columns via a rotating shaft, a hydraulic cylinder being mounted on the mounting plate, one end of the hydraulic cylinder being rotatably connected to the mounting plate, and the other end being rotatably connected to one end of the lifting arm, the other end of the lifting arm being provided with a hook, a limiting structure being provided at the top of the support column, a limiting device being provided on the support column for limiting the lifting arm, and a buffer blocking mechanism being provided in the discharge flow direction of the conveying platform.

[0006] As a further improvement, the limiting device includes a cylinder and an auxiliary support shaft. The cylinder is mounted on a support column, and the output end of the cylinder passes through the support column and is connected to the auxiliary support shaft. The auxiliary support shaft is movably inserted into the lifting arm.

[0007] Furthermore, a limiting protrusion is provided at the middle position of the lifting arm, and a support hole is provided on the limiting protrusion, and the auxiliary support shaft is movably inserted into the support hole.

[0008] Furthermore, the limiting structure includes a limiting block, which is arranged on the inner side above the support column.

[0009] Furthermore, the limiting block is provided with a buffer rubber pad.

[0010] Furthermore, the buffer blocking mechanism includes a support base, a stop post, and a buffer spring. The bottom of the support base is mounted on the conveying platform, the buffer spring is arranged in the middle of the support base, and the stop post is mounted on the support base on both sides of the buffer spring.

[0011] Furthermore, the number of support columns is four, with two columns on each side of the roller conveyor belt, and the support columns on the same side arranged in a straight line.

[0012] Beneficial effects

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] This utility model discloses a support device for lifting and fixing a pallet. The pallet is transported by a roller conveyor belt. Under the deceleration of the buffer spring, the pallet is stopped in place by a stop post. The precise positioning of the pallet allows for more accurate positioning of the towed engine body. Four hydraulic cylinders work simultaneously to pull down the lifting arm. Under the action of the rotating shaft, one end of the hook rises, lifting the pallet and pressing the edge of the pallet against the limiting block on the upper side of the support post. Then, the cylinder pushes the auxiliary support shaft through the support hole. The auxiliary support shaft is supported on the side wall of the support post. Under the action of the support shaft and the rotating shaft, the lifting arm is effectively prevented from rotating, improving the support stability and preventing the pallet from falling due to hydraulic cylinder failure. This effectively increases safety and is convenient to use and has a wide range of applications. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a top view of the structure of this utility model;

[0018] Figure 4 This is an enlarged side view of the support column structure in this utility model.

[0019] Among them: 1-oil cylinder, 2-lifting arm, 3-pneumatic cylinder, 4-support column, 5-hook head, 6-stop column, 7-buffer spring, 8-roller conveyor belt, 9-auxiliary support shaft, 10-rotating shaft, 11-mounting plate, 12-conveying platform, 13-support seat, 14-limit block, 15-buffer rubber pad, 16-limiting protrusion, 17-support hole. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.

[0021] See Figure 1-4 As shown, this utility model discloses a support device for lifting and fixing pallets, including a conveyor platform 12. A roller conveyor belt 8 for conveying pallets is provided on the conveyor platform 12. Multiple support columns 4 are provided on both sides of the roller conveyor belt 8. The support columns 4 are fixed to the support columns 4 by mounting plates 11. A lifting arm 2 is rotatably mounted at the middle position 10 of the multiple support columns 4. A hydraulic cylinder 1 is provided on the mounting plate 11, with one end rotatably connected to the mounting plate 11 and the other end rotatably connected to one end of the lifting arm 2. A hook 5 is provided at the other end of the lifting arm 2. A limiting structure is provided at the top of the support columns 4, and a limiting device is provided on the support columns 4 for limiting the lifting arm 2. A buffer blocking mechanism is provided in the discharge flow direction of the conveyor platform 12. The pallet is conveyed by the roller conveyor belt 8. Under the deceleration of the buffer spring 7, the pallet is stopped in place by the stop column 6, achieving precise positioning of the pallet. This makes the positioning of the towed engine body more accurate. The four hydraulic cylinders 1 work simultaneously to pull down the lifting arm 2. Under the action of the rotating shaft 10, one end of the hook head 5 rises, lifting the pallet and pressing the edge of the pallet against the limit block 14 on the upper side of the support column 4. Then, the cylinder 3 pushes the auxiliary support shaft 9 through the support hole 17. The auxiliary support shaft 9 is supported on the side wall of the support column 4. Under the action of the auxiliary support shaft 9 and the rotating shaft 10, the lifting arm 2 is effectively prevented from rotating, improving support stability and preventing the pallet from falling due to cylinder failure, thus effectively increasing safety.

[0022] Specifically, the limiting device includes a cylinder 3 and an auxiliary support shaft 9. The cylinder 3 is mounted on the support column 4, and the output end of the cylinder 3 passes through the support column 4 and is connected to the auxiliary support shaft 9. The auxiliary support shaft 9 is movably inserted into the lifting arm 2. The cylinder 3 pushes the auxiliary support shaft 9, so that the auxiliary support shaft 9 is inserted into the lifting arm 2. The auxiliary support shaft 9 and the rotating shaft 10 form two support points, so that the lifting arm 2 cannot rotate, thereby ensuring the stability of the support.

[0023] Specifically, a limiting protrusion 16 is provided in the middle of the lifting arm 2, and a support hole 17 is provided on the limiting protrusion 16. The auxiliary support shaft 9 is movably inserted into the support hole 17. By setting the limiting protrusion 16, the auxiliary support shaft 9 can be inserted into the limiting protrusion 16, thus preventing the support hole 17 from being opened on the lifting arm 2 and ensuring the mechanical strength of the lifting arm 2.

[0024] Furthermore, the limiting structure includes a limiting block 14, which is arranged on the inner side above the support column 4 to limit the rising height of the pallet and clamp the pallet.

[0025] Furthermore, the limiting block 14 is provided with a buffer rubber pad 15, which plays a buffering role to prevent the tray from directly colliding with the limiting block 14 and effectively protect the equipment.

[0026] Furthermore, the buffer blocking mechanism includes a support base 13, a stop post 6, and a buffer spring 7. The bottom of the support base 13 is mounted on the conveying platform 12, the buffer spring 7 is arranged in the middle of the support base 13, and the stop post 6 is mounted on the support base 13 on both sides of the buffer spring 7. The buffer spring 7 plays a buffering role, helping the pallet to slow down, thereby stopping the pallet in place under the action of the stop post 6, and achieving precise positioning of the pallet.

[0027] Furthermore, there are four support columns 4, with two on each side of the roller conveyor belt 8. The support columns 4 on the same side are arranged in a straight line, and the pallet is lifted from four directions, making the pallet more stable during the lifting process.

[0028] In this embodiment, a support device for lifting and fixing a pallet is used. The pallet is conveyed by a roller conveyor belt 8. Under the deceleration of a buffer spring 7, the pallet is stopped in place by a stop post 6, achieving precise pallet positioning. This, in turn, makes the positioning of the towed engine block more accurate. Four hydraulic cylinders 1 work simultaneously to pull down the lifting arm 2. Under the action of the rotating shaft 10, one end of the hook 5 rises, lifting the pallet and pressing its edge against the limiting block 14 on the upper side of the support post 4. Then, cylinder 3 pushes the auxiliary support shaft 9 through the support hole 17. The auxiliary support shaft 9 is supported on the side wall of the support post 4. The action of the auxiliary support shaft 9 and the rotating shaft 10 effectively prevents the lifting arm 2 from rotating, improving support stability and preventing the pallet from falling due to cylinder malfunction, thus effectively increasing safety. This utility model's support device for lifting and fixing a pallet effectively improves the positioning accuracy and support stability of the engine block, and has the characteristics of wide applicability and strong practicality.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present utility model. These modifications and improvements will not affect the effectiveness of the present utility model or the practicality of the patent.

Claims

1. A support device for lifting and fixing a pallet, comprising a conveyor platform (12), wherein the conveyor platform (12) is provided with a roller conveyor belt (8) for conveying the pallet, characterized in that, The roller conveyor belt (8) is provided with multiple support columns (4) on both sides. The support columns (4) are fixed on the support columns (4) by mounting plates (11). A lifting arm (2) is provided in the middle of the multiple support columns (4) via a rotating shaft (10). A hydraulic cylinder (1) is provided on the mounting plate (11). One end of the hydraulic cylinder (1) is rotatably connected to the mounting plate (11), and the other end is rotatably connected to one end of the lifting arm (2). The other end of the lifting arm (2) is provided with a hook (5). A limiting structure is provided at the top of the support column (4). A limiting device for limiting the lifting arm (2) is provided on the support column (4). A buffer blocking mechanism is provided in the discharge flow direction of the conveying platform (12).

2. The support device for lifting and fixing a pallet according to claim 1, characterized in that, The limiting device includes a cylinder (3) and an auxiliary support shaft (9). The cylinder (3) is mounted on a support column (4). The output end of the cylinder (3) passes through the support column (4) and is connected to the auxiliary support shaft (9). The auxiliary support shaft (9) is movably inserted into the lifting arm (2).

3. The support device for lifting and fixing a pallet according to claim 2, characterized in that, The lifting arm (2) is provided with a limiting protrusion (16) in the middle position, and a support hole (17) is provided on the limiting protrusion (16). The auxiliary support shaft (9) is movably inserted into the support hole (17).

4. The support device for lifting and fixing a pallet according to claim 1, characterized in that, The limiting structure includes a limiting block (14), which is arranged on the inner side above the support column (4).

5. The support device for lifting and fixing a pallet according to claim 4, characterized in that, The limiting block (14) is provided with a buffer rubber pad (15).

6. The support device for lifting and fixing a pallet according to claim 4, characterized in that, The buffer blocking mechanism includes a support base (13), a stop post (6), and a buffer spring (7). The bottom of the support base (13) is mounted on the conveying platform (12). The buffer spring (7) is arranged in the middle of the support base (13). The stop post (6) is mounted on the support base (13) on both sides of the buffer spring (7).

7. The support device for lifting and fixing a pallet according to claim 1, characterized in that, The number of support columns (4) is four, and two are respectively provided on both sides of the roller conveyor belt (8). The support columns (4) on the same side are arranged on the same straight line.

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