Supporting and pulling device for assembling battery module into shell

Abstract

The utility model discloses a supporting and pulling device for putting a battery module into a shell. The supporting and pulling device comprises a first supporting and pulling piece and a second supporting and pulling piece which are oppositely arranged, and a driving device for driving the first supporting and pulling piece and the second supporting and pulling piece to synchronously act, under the driving of the driving device, the first supporting and pulling piece and the second supporting and pulling piece open the shell deformation face close to the sides of the first supporting and pulling piece and the second supporting and pulling piece and open the shell opening from the sides close to the sides of the second supporting and pulling piece. The shell is supported and pulled through the first supporting and pulling piece and the second supporting and pulling piece which are oppositely arranged and synchronously driven, the deformation faces on the opposite sides are opened, and the opening of the shell is pulled open from the opposite sides, so that the battery module can be smoothly put into the shell through a mechanical arm, manual assistance is not needed, and the module shell entering efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a battery module shell supporting and pulling device, belonging to the field of lithium battery module manufacturing. Background Art

[0002] In the manufacturing process of lithium-ion battery PACK, module shelling is an essential process, which uses a robot to put the battery module into the plastic shell. In the actual production process, the large surface of the shell after injection molding often becomes greatly deformed (i.e., it sinks inward), and the shell opening often becomes narrower (i.e., it shrinks inward). Currently, only manual assistance (i.e., manual shaping of the shell) can be used to put the module into the shell, which seriously affects the efficiency of module shelling. Utility Model Content

[0003] The utility model provides a battery module shell support and pulling device, which solves the problems disclosed in the background technology.

[0004] According to one aspect of the present disclosure, a battery module shell-entry supporting and pulling device is provided, comprising a first supporting and pulling member and a second supporting and pulling member arranged opposite to each other, and a driving device for driving the first supporting and pulling member and the second supporting and pulling member to move synchronously; under the drive of the driving device, the first supporting and pulling member and the second supporting and pulling member both support the shell deformation surface close to their own side and pull open the shell opening from the side close to themselves.

[0005] The battery module shell entry supporting and pulling device supports and pulls the shell through the first supporting and pulling members that are relatively arranged and synchronously driven, expands the deformed surfaces on the opposite sides, and opens the shell opening from the opposite sides, so that the robot can smoothly place the battery module into the shell without manual assistance, thereby improving the efficiency of module entry into the shell.

[0006] In some embodiments of the present disclosure, the first supporting member and the second supporting member are both rakes, and the front end of the bent rake teeth of the rake extends at least to the deformation position of the deformation surface.

[0007] The first supporting member and the second supporting member are rakes, which are not only simple in structure but also easy to process. Driven by the driving device, the front end of the rake teeth can stably open the deformed part, and the rake can stably open the shell opening.

[0008] In some embodiments of the present disclosure, the rake has multiple pairs of rake teeth, and the distance between each pair of rake teeth is adjustable.

[0009] The spacing between the rake teeth is set to be adjustable so that the rake can be adapted to shells of different sizes.

[0010] In some embodiments of the present disclosure, a waist-shaped hole is provided on the rake head of the rake, and the rear ends of the rake teeth are connected to the waist-shaped hole through fasteners. The waist-shaped hole is easy to process and has low cost, and can effectively adjust the spacing between the rake teeth.

[0011] In some embodiments of the present disclosure, the front end of the rake teeth is a wedge-shaped structure. The wedge-shaped structure has a certain angle, is larger at the top and smaller at the bottom, and can be better inserted into and removed from the housing.

[0012] In some embodiments of the present disclosure, the rake teeth are L-shaped rake teeth. The housing is generally a rectangular body, and the L-shaped rake teeth can better fit the housing.

[0013] In some embodiments of the present disclosure, the driving device includes a first driving device with multiple degrees of freedom, a second driving device with multiple degrees of freedom, and a controller; the first driving device drives the first supporting member and the second driving device drives the second supporting member respectively, and the controller controls the first driving device to drive the second driving device synchronously.

[0014] Using a unified controller to control the first driving device with multiple degrees of freedom and the second driving device with multiple degrees of freedom can ensure synchronization accuracy to the greatest extent.

[0015] In some embodiments of the present disclosure, the first drive device and the second drive device have the same structure, both of which include a Z-axis drive device and a Y-axis drive device. The support member is arranged on the Y-axis drive device, and the Y-axis drive device drives the support member to move along the Y-axis. The Y-axis drive device is arranged on the Z-axis drive device, and the Z-axis drive device drives the Y-axis drive device and the support member to move along the Z-axis together.

[0016] The first driving device and the second driving device have simple structures, and the components can be purchased directly from the market, which greatly reduces the cost.

[0017] The beneficial effects achieved by the utility model are as follows: the utility model stretches and supports the shell by means of a first stretching member and a second stretching member which are relatively arranged and synchronously driven, stretches and opens the deformation surface on the opposite side, and opens the shell opening from the opposite side, so that the robot can smoothly place the battery module into the shell without manual assistance, thereby improving the efficiency of module entry into the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a battery module shell support and pulling device;

[0019] Figure 2 It is a structural schematic diagram of the supporting member;

[0020] Figure 3 It is a schematic diagram of the structure of the rake teeth;

[0021] Figure 4 A schematic diagram of the structure of one side of the battery module shell support and pulling device;

[0022] Figure 5 It is a structural schematic diagram of the Z-axis driving device;

[0023] Figure 6 It is a structural schematic diagram of the Y-axis driving device. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. It is obvious that the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0025] Unless otherwise specified, the relative arrangement of components set forth in these embodiments does not limit the scope of the present disclosure.

[0026] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0027] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0028] In order to solve the problem that manual assistance is required for the existing module to be inserted into the shell, the present disclosure proposes a battery module insertion support and pulling device, which specifically uses a support and pulling member to support the deformed surface of the shell and pull open the opening so that the battery module can be smoothly inserted into the shell.

[0029] Figure 1 This is a schematic diagram of an embodiment of a battery module shell support and pulling device disclosed in the present invention, comprising a first support and pulling member and a second support and pulling member arranged opposite to each other, and a driving device for driving the first support and pulling member and the second support and pulling member to move synchronously; under the drive of the driving device, the first support and pulling member both support the shell deformation surface close to their own side and pull open the shell opening from the side close to themselves.

[0030] It should be noted that the first supporting member and the second supporting member can be located on both sides of the shell conveyor belt, that is, after the shell is conveyed to the supporting position, the first supporting member and the second supporting member synchronously support and pull the shell, and the robot directly puts the battery module into the stretched shell. After the battery module is put into the shell, the first supporting member and the second supporting member are reset, and the conveyor belt transfers the structure after entering the shell to the next workstation.

[0031] It should be noted that in the field of machinery, the current bracing members can be implemented in a variety of forms, such as bracing by suction cups, but in some embodiments, the first bracing member and the second bracing member are both designed as rakes 3, and in order to ensure the bracing effect of the deformation surface, it is further required that the front end of the bent rake teeth of the rake 3 at least extend to the deformation of the deformation surface. The first bracing member and the second bracing member are rakes, which are not only simple in structure but also easy to process. Under the drive of the driving device, the front end of the rake teeth can stably brace the deformation, and the rake can stably open the shell opening.

[0032] like Figure 2 and 3 As shown, the rake 3 includes a rake head 31 and rake teeth 33. The rake head 31 is a straight plate. The rake teeth 33 are located on one side of the rake head 31. The rear end of the rake teeth 33 is fixed to the rake head 31, and the other end is bent.

[0033] In order to support and pull multiple shells at one time, and if the rake head 31 is long enough, in some embodiments, the rake teeth 33 of the rake 3 can be provided with multiple pairs, and a pair of rake teeth 33 supports and pulls one shell, such as Figure 2 In the embodiment, two pairs of rake teeth 33 are provided.

[0034] Since different housings often have different sizes, in order to adapt to different housings, in some embodiments, the distance between each pair of rake teeth 33 can be set as an adjustable structure.

[0035] It should be noted that there are many existing structures for adjusting the spacing, such as setting the rear ends of the two rake teeth 33 of the same pair on the same slide groove, and adjusting the spacing between the two through the slide groove. In some embodiments, in order to facilitate processing and reduce costs, a waist-shaped hole 32 can be used to achieve spacing adjustment. Specifically, a waist-shaped hole 32 is opened on the rake head 31 of the rake 3, and the rear ends of the rake teeth 33 are connected to the waist-shaped hole 32 through fasteners (such as bolts, etc.); when the spacing needs to be adjusted, loosen the fasteners and adjust the spacing of the rake teeth 33.

[0036] It should be noted that, since the housing is generally a rectangular body, the rake teeth 33 are L-shaped as a whole, so that they can better fit the housing. Since the front end of the rake teeth 33 needs to be inserted into the housing to support and pull the housing, and the front end of the rake teeth 33 needs to be pulled out from the housing after entering the housing, in some embodiments, in order to better achieve the insertion and extraction of the rake teeth 33, the front end of the rake teeth 33 is set to a wedge-shaped structure with a certain angle, larger at the top and smaller at the bottom, so that it can be better inserted into and taken out of the housing.

[0037] It should be noted that the driving device can be a driving device that drives the first supporting member and the second supporting member at the same time. However, in order to ensure the synchronization accuracy, in some embodiments, a driving device is provided for each supporting member and is controlled by a unified controller. Specifically: the driving device includes a first driving device with multiple degrees of freedom, a second driving device with multiple degrees of freedom and a controller; the first driving device drives the first supporting member and the second driving device drives the second supporting member respectively, and the controller controls the first driving device to drive the second driving device synchronously.

[0038] It should be noted that since the support member needs to move in multiple directions, the driving device here needs to be a driving device with multiple degrees of freedom. Figures 4 to 6 The first drive device and the second drive device have the same structure, both of which include a Z-axis drive device 1 and a Y-axis drive device 2. The bracing member is installed on the Y-axis drive device 2, and the Y-axis drive device 2 drives the bracing member to move along the Y-axis. The Y-axis drive device 2 is installed on the Z-axis drive device 1, and the Z-axis drive device 1 drives the Y-axis drive device 2 and the bracing member to move along the Z-axis. This structure is relatively simple, and the components can be purchased directly from the market, which greatly reduces the cost.

[0039] The Z-axis driving device 1 can use a lead screw driven by a motor, the lead screw is directly fixed on the frame 4 along the Z-axis direction, the moving block of the lead screw is fixed on the mounting plate 5, and the Y-axis driving device 2 is fixed on the mounting plate 5. The controller controls the motor to rotate, thereby driving the lead screw to move, and further driving the Y-axis driving device 2 to move along the Z-axis.

[0040] The Y-axis driving device 2 may include a cylinder 21 and a guide rail 23 installed along the Y-axis, and a slider 22 arranged on the guide rail 23, the slider 22 is connected to the telescopic end of the cylinder 21, an electric control valve is installed at the air port of the cylinder 21, and the rake head 31 of the rake 3 is fixed on the slider 22. The controller controls the telescopic movement of the cylinder 21 by controlling the electric control valve, thereby controlling the rake 3 to move along the Y-axis.

[0041] by Figure 1 Taking the battery module into the shell supporting and pulling device as an example, the process of supporting and pulling the shell is as follows: after the shell reaches the supporting and pulling position, under the action of the Z-axis drive device 1 and the Y-axis drive device 2, the bent end of the rake tooth 33 is inserted into the shell from the shell opening, and the rakes 3 on both sides move back and forth along the Y direction at the same time. With the movement of the rake 3, the deformation surface on the opposite side is stretched open and the shell opening is pulled open from the opposite side. After the manipulator successfully puts the battery module into the shell, it drives the rake 3 to reset.

[0042] The above-mentioned device stretches and pulls the shell through the first and second stretching members that are relatively arranged and synchronously driven, stretches the deformed surfaces on the opposite sides, and pulls open the shell opening from the opposite sides, so that the robot can smoothly place the battery module into the shell without manual assistance, thereby improving the efficiency of module entry into the shell.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A battery module shell support and pulling device, characterized in that: It comprises a first and a second bracing member arranged opposite to each other, and a driving device for driving the first and the second bracing member to move synchronously; driven by the driving device, the first and the second bracing member both open the shell deformation surface close to their own side and open the shell opening from their own side.

2. The battery module shell support and pulling device according to claim 1, characterized in that: The first supporting member and the second supporting member are both rakes, and the front end of the bent rake teeth of the rake at least extends to the deformation position of the deformation surface.

3. The battery module shell support and pulling device according to claim 2, characterized in that: The rake has multiple pairs of teeth, and the spacing between each pair of teeth is adjustable.

4. The battery module shell support and pulling device according to claim 3, characterized in that: A waist-shaped hole is arranged on the rake head of the rake, and the rear ends of the rake teeth are connected with the waist-shaped hole through fasteners.

5. The battery module shell support and pulling device according to claim 2, characterized in that: The front end of the rake teeth is a wedge-shaped structure.

6. The battery module shell supporting and pulling device according to any one of claims 2 to 5, characterized in that: The rake teeth are L-shaped rake teeth.

7. The battery module shell support and pulling device according to claim 1, characterized in that: The driving device comprises a first driving device with multiple degrees of freedom, a second driving device with multiple degrees of freedom and a controller; the first driving device drives the first bracing member and the second driving device drives the second bracing member respectively, and the controller controls the first driving device to drive the second driving device synchronously.

8. The battery module shell support and pulling device according to claim 7, characterized in that: The first driving device and the second driving device have the same structure, both of which include a Z-axis driving device and a Y-axis driving device. The supporting member is arranged on the Y-axis driving device, and the Y-axis driving device drives the supporting member to move along the Y-axis. The Y-axis driving device is arranged on the Z-axis driving device, and the Z-axis driving device drives the Y-axis driving device and the supporting member to move along the Z-axis together.

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