PACK automatic hoisting device

Abstract

The utility model belongs to the technical field of battery module manufacturing, and discloses a PACK automatic hoisting device which comprises a cover plate, a base, a clamping jaw mechanism and a connecting piece, the cover plate is provided with a connector mounting hole connected with a hoisting arm, the base is fixedly connected below the cover plate through the connecting piece, and the clamping jaw mechanism is formed between the base and the cover plate and used for containing the clamping jaw mechanism. The clamping jaw mechanism is used for clamping a battery pack and comprises a clamping jaw assembly and a distance adjusting assembly, and the distance adjusting assembly can adjust the clamping distance of the clamping jaw assembly so that the clamping jaw assembly can adapt to clamping of battery packs of different models.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery module manufacturing, and specifically relates to a PACK automatic hoisting device. Background Art

[0002] During the manufacturing stage of lithium battery modules, the battery cells need to be stacked and welded into battery packs, and then the battery packs need to be assembled into battery modules. After the battery cells are stacked and welded into battery packs, the battery packs need to be moved to battery modules for assembly into finished products.

[0003] In the new energy industry, due to the large number of new energy vehicle models, there are many types of Pack boxes, and then there are many types of battery packs. Each battery pack needs to be compatible with a lifting device, which increases development costs, is not conducive to product replacement, and conflicts with the cost reduction and efficiency improvement concept of the entire industry. Therefore, there is an urgent need for a lifting device that can realize battery pack lifting and is compatible with battery modules of different sizes.

[0004] In the prior art, for example, the patent number is: ZL201520910236.9, which discloses a rotary four-claw double-linkage clamp. The patent discloses an adjusting screw with a bidirectional thread. The adjusting nut is used to control the synchronous relative displacement of the clamping claws to achieve the technical effect of clamping or releasing the workpiece, and two sets of adjusting screws form a cross-shaped structure to achieve clamping of the four sides of the workpiece. However, the cross-shaped clamp structure of the above scheme is not suitable for grasping the battery pack. The two sides of the battery pack are thin steel plates that are easy to deform. The shear force of the glue on the two side plates and the glue on the side of the battery cell restrains the battery cell from falling and cannot be subjected to force. The conventional solution is to grasp the thick aluminum plates at both ends of the battery pack, which has the function of restraining the expansion force of the battery pack in the length direction. It can be seen that when grasping the two ends of the battery pack, the clamping claws can realize displacement adjustment in the X-axis and Y-axis directions, and aligning the lifting holes of battery packs of different models is a technical problem that needs to be solved at present. Summary of the invention

[0005] In view of the above problems, the utility model provides a lifting device that can adjust the position of the clamping claws in the X-axis and Y-axis directions during the clamping process of the two ends of the battery pack in the length direction. The specific scheme is as follows:

[0006] A PACK automatic lifting device, comprising:

[0007] A cover plate, on which a joint mounting hole connected to the boom is provided;

[0008] A base is connected and fixed below the cover plate through a connecting piece, and a receiving cavity for receiving the claw mechanism is formed between the base and the cover plate;

[0009] A claw mechanism, which is used to clamp the battery pack;

[0010] The clamping claw mechanism includes a clamping claw assembly and a distance adjustment assembly. The distance adjustment assembly can adjust the clamping distance of the clamping claw assembly so that the clamping claw assembly can adapt to the clamping of battery packs of different models.

[0011] Further, the claw assembly includes two claw groups arranged along the length direction of the battery pack, namely a first claw group and a second claw group, and each claw group includes two claw units arranged along the width direction of the battery pack;

[0012] Two bidirectional screw pairs fixed to the upper surface of the base along the width direction of the battery pack are respectively a first bidirectional screw pair and a second bidirectional screw pair, two screw nuts on the first bidirectional screw pair are respectively connected to the two claw units in the first claw group, and two screw nuts on the second bidirectional screw pair are respectively connected to the two claw units in the second claw group;

[0013] A third bidirectional lead screw pair is arranged above the base along the length direction of the battery pack, and two lead screw nuts on the third bidirectional lead screw pair are respectively installed with push plates, and a card slot is arranged along the width direction of the battery pack on the push plate, and a slider is arranged in the card slot;

[0014] The clamping claw unit includes a clamping arm, a pull rod and a support, wherein the bottom of the support is fixedly connected to its corresponding screw nut, and a hole is opened on the support for the pull rod to pass through. One end of the pull rod is fixedly connected to the clamping arm, and the other end is connected to the slider after passing through the hole.

[0015] Furthermore, the third bidirectional screw pair is connected to the driving shaft of the first motor, and the first motor is fixedly connected to the bottom of the cover plate.

[0016] Furthermore, the first bidirectional screw pair and the second bidirectional screw pair are connected to the second motor drive shaft via a synchronous pulley.

[0017] Furthermore, a first guide rail arranged parallel to the first bidirectional screw pair is disposed on the outer side thereof, and two first moving blocks are disposed on the first guide rail, and the two first moving blocks are respectively connected to two screw nuts on the first bidirectional screw pair;

[0018] A second guide rail arranged parallel to the second bidirectional lead screw pair is disposed on the outer side thereof, and two second moving blocks are disposed on the second guide rail. The two second moving blocks are respectively connected to the two lead screw nuts on the second bidirectional lead screw pair.

[0019] Compared with the prior art, the advantages of the utility model are as follows:

[0020] 1. The utility model can adjust the clamping distance of the clamping claw assembly through the distance adjustment assembly, so that the clamping claw assembly can adapt to the clamping of battery packs of different models.

[0021] 2. The utility model sets a first guide rail parallel to the outside of the first bidirectional screw pair; sets a second guide rail parallel to the outside of the second bidirectional screw pair, and then connects the first screw nut with the slider in the first guide rail, and connects the second screw nut with the slider in the second guide rail, so that the distance adjustment component in the width direction can run more smoothly, thereby improving the stability of the displacement of the claw unit in the width direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the hoisting;

[0025] Figure 4 It is a schematic diagram of the battery module structure;

[0026] Reference numerals:

[0027] 1. Claw unit; 2. Pull rod; 3. Base; 4. Cover plate; 5. First bidirectional lead screw pair; 6. Second bidirectional lead screw pair; 7. Third bidirectional lead screw pair; 8. Slot; 9. Slider; 10. Push plate; 11. First motor; 12. Second motor; 13. Synchronous wheel; 14. Synchronous belt; 16. First guide rail; 17. First moving block; 18. Second guide rail; 19. Second moving block; 20. Support; 21. Hole; 18. Battery pack; 19. End plate; 20. Lifting hole. DETAILED DESCRIPTION

[0028] In the description of the present invention, unless otherwise specified, the terms "upper", "lower", "left", "right", "front", "rear", etc. indicating directions or positional relationships are only for describing the present invention and simplifying the description, and do not indicate or imply that the device or structure referred to must have a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Example

[0029] like Figure 1 As shown, a PACK automatic lifting device comprises:

[0030] A cover plate, on which a joint mounting hole connected to the boom is provided;

[0031] A base is connected and fixed below the cover plate through a connecting piece, and a receiving cavity for receiving the claw mechanism is formed between the base and the cover plate;

[0032] A claw mechanism, which is used to clamp the battery pack;

[0033] The clamping claw mechanism includes a clamping claw assembly and a distance adjustment assembly. The distance adjustment assembly can adjust the clamping distance of the clamping claw assembly so that the clamping claw assembly can adapt to the clamping of battery packs of different models. Example

[0034] like Figure 2 As shown, the claw assembly includes two claw groups arranged along the length direction of the battery pack, namely a first claw group and a second claw group, and each claw group includes two claw units arranged along the width direction of the battery pack;

[0035] Two bidirectional screw pairs fixed to the upper surface of the base along the width direction of the battery pack are respectively a first bidirectional screw pair and a second bidirectional screw pair, two screw nuts on the first bidirectional screw pair are respectively connected to the two claw units in the first claw group, and two screw nuts on the second bidirectional screw pair are respectively connected to the two claw units in the second claw group;

[0036] A third bidirectional lead screw pair is arranged above the base along the length direction of the battery pack, and two lead screw nuts on the third bidirectional lead screw pair are respectively installed with push plates, and a card slot is arranged along the width direction of the battery pack on the push plate, and a slider is arranged in the card slot;

[0037] The clamping claw unit includes a clamping arm, a pull rod and a support, wherein the bottom of the support is fixedly connected to its corresponding screw nut, and a hole is opened on the support for the pull rod to pass through. One end of the pull rod is fixedly connected to the clamping arm, and the other end is connected to the slider after passing through the hole. Example

[0038] In order to ensure the smooth displacement of the claw unit in the width direction, the utility model also has the following improvements on the above solution:

[0039] like Figure 2 As shown, a first guide rail arranged parallel to the first bidirectional screw pair is disposed on the outer side thereof, and two first moving blocks are disposed on the first guide rail, and the two first moving blocks are respectively connected to two screw nuts on the first bidirectional screw pair;

[0040] A second guide rail arranged parallel to the second bidirectional lead screw pair is disposed on the outer side thereof, and two second moving blocks are disposed on the second guide rail. The two second moving blocks are respectively connected to the two lead screw nuts on the second bidirectional lead screw pair.

[0041] Usage process:

[0042] like Figure 3 and Figure 4As shown, the production system automatically determines the size of the battery module according to the production task order. The industrial robot moves the lifting device to the top of the battery pack to be lifted. The production system gives the X-axis and Y-axis motor instructions to rotate until the claw moves to the lifting hole position. Finally, the claw clamps the battery pack, and the industrial robot lifts the lifting device and the battery pack to move.

[0043] In order to make the purpose, technical solution and advantages of the utility model more concise and clear, the utility model is illustrated by the above specific embodiments, which are only used to describe the utility model and cannot be understood as limiting the scope of the utility model. It should be pointed out that any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A PACK automatic lifting device, comprising: A cover plate, on which a joint mounting hole connected to the boom is provided; A base is connected and fixed below the cover plate through a connecting piece, and a receiving cavity for receiving the claw mechanism is formed between the base and the cover plate; A claw mechanism, which is used to clamp the battery pack; It is characterized in that The clamping claw mechanism includes a clamping claw assembly and a distance adjustment assembly. The distance adjustment assembly can adjust the clamping distance of the clamping claw assembly so that the clamping claw assembly can adapt to the clamping of battery packs of different models.

2. The PACK automatic lifting device according to claim 1, characterized in that: The claw assembly includes two claw groups arranged along the length direction of the battery pack, namely a first claw group and a second claw group, each claw group includes two claw units arranged along the width direction of the battery pack; Two bidirectional screw pairs fixed to the upper surface of the base along the width direction of the battery pack are respectively a first bidirectional screw pair and a second bidirectional screw pair, two screw nuts on the first bidirectional screw pair are respectively connected to the two claw units in the first claw group, and two screw nuts on the second bidirectional screw pair are respectively connected to the two claw units in the second claw group; A third bidirectional lead screw pair is arranged above the base along the length direction of the battery pack, and two lead screw nuts on the third bidirectional lead screw pair are respectively installed with push plates, and a card slot is arranged along the width direction of the battery pack on the push plate, and a slider is arranged in the card slot; The clamping claw unit includes a clamping arm, a pull rod and a support, wherein the bottom of the support is fixedly connected to its corresponding screw nut, and a hole is opened on the support for the pull rod to pass through. One end of the pull rod is fixedly connected to the clamping arm, and the other end is connected to the slider after passing through the hole.

3. The PACK automatic lifting device according to claim 2, characterized in that: The third bidirectional screw pair is connected to the driving shaft of the first motor, and the first motor is fixedly connected to the bottom of the cover plate.

4. The PACK automatic lifting device according to claim 2, characterized in that: The first bidirectional screw pair and the second bidirectional screw pair are connected to the second motor drive shaft via a synchronous pulley.

5. The PACK automatic lifting device according to claim 2, characterized in that: A first guide rail is arranged parallel to the first bidirectional screw pair on the outer side thereof, and two first moving blocks are arranged on the first guide rail, and the two first moving blocks are respectively connected to the two screw nuts on the first bidirectional screw pair; A second guide rail arranged parallel to the second bidirectional lead screw pair is disposed on the outer side thereof, and two second moving blocks are disposed on the second guide rail. The two second moving blocks are respectively connected to the two lead screw nuts on the second bidirectional lead screw pair.

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