Square battery casing mechanism

Abstract

The utility model belongs to the technical field of battery manufacturing, and particularly relates to a square battery shell entering mechanism which comprises a shell pushing mechanism used for pushing a battery shell and a shell entering position plate used for guiding a battery cell, the shell entering position plate is provided with a battery cell inlet, and the moving end of the shell pushing mechanism is provided with a suction cup used for sucking the bottom of the shell. The suction cup structure is added on the basis of the prior art, the bottom of the shell is sucked through the suction cup, the movement position of the shell can be accurately controlled, and therefore follow-up accurate welding is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery manufacturing, and in particular relates to a square battery shell insertion mechanism. Background Art

[0002] In the field of battery manufacturing technology, battery cell shelling is a key process, which directly affects the performance and quality of the battery. A Chinese patent discloses an automatic battery cell shelling device, application number: CN201510808639.7, which includes a shelling station, and a shell positioning mechanism, a shell opening mechanism, a shell entry guide mechanism, a shell entry mechanism and a shell delivery mechanism for transporting the shell to the shelling station, the shell positioning mechanism positions the four sides of the shell, the shell entry guide mechanism is arranged above the shell entry station to guide the battery cell to be shelled, the shell opening mechanism includes an opening cylinder, and suction cups and suction cup arms respectively arranged on both sides of the shell, the suction cup arms connect the suction cups, the opening cylinder controls the opening and closing between the two suction cups through the suction cup arms, and the shell entry mechanism includes a shell entry manipulator for clamping the battery cell into the shell. This patent allows the battery cell to fall into the shell in a free-fall state. This structure cannot accurately position the shell, resulting in poor quality of subsequent welding. In addition, during the process of the battery cell entering the shell, some dust will be generated during the operation of the equipment, and this dust will fall into the shell, easily causing problems such as battery cell short circuit. Utility Model Content

[0003] The utility model aims to provide a square battery shell insertion mechanism to solve the problems of poor sealing and time-consuming and labor-intensive connection of sealing parts in the prior art.

[0004] To achieve the above purpose, the utility model provides the following technical solutions: a square battery shell insertion mechanism, including a shell pushing mechanism for pushing the battery shell and a shell insertion position plate for guiding the battery core, the shell insertion position plate is provided with a battery core entrance, and the movable end of the shell pushing mechanism is provided with a suction cup for adsorbing the bottom of the shell. The device adds a suction cup structure on the existing basis, and the suction cup adsorbs the bottom of the shell, so as to accurately control the position of the shell movement, thereby facilitating subsequent accurate welding.

[0005] Preferably, a shell entry step is provided below the cell entrance, and the shell is pushed by the shell pushing mechanism to a position where the shell opening is 0.8-1.2 mm away from the shell entry step. The shell opening is pushed to a position preferably 1 mm away from the shell entry step without contacting the shell entry step, so the shell opening will not be damaged, thereby improving product quality and effectively avoiding the generation of foreign matter and dust.

[0006] Preferably, a dust receiving groove is provided on one side of the shell entry step. Since the battery cell will have some contact with the battery cell entrance during the shell entry process, if there is some dust at the bottom of the battery cell, the dust will automatically fall into the dust receiving groove during the shell entry process, and the worker can clean the dust receiving groove regularly.

[0007] Preferably, a chamfered structure is provided around the battery cell inlet to facilitate smooth passage of the battery cell.

[0008] Preferably, the shell propulsion mechanism comprises a module motor, a mounting base, a clamping cylinder and a push plate, wherein the mounting base is connected to the movable end of the module motor, the clamping cylinder is fixed to the mounting base, the piston rod of the cylinder is connected to the push plate, and the suction cup is fixed to the push plate. The shell propulsion mechanism has a simple structure and a low failure rate.

[0009] Preferably, two linear slide rails are fixed on the mounting base plate, a slider mounting plate is slidably connected to the linear slide rails, and one end of the slider mounting plate is connected to the push plate. The push plate is precisely guided by the slide rails so that the housing can be accurately aligned with the battery cell for easy insertion.

[0010] Preferably, two positioning clamping blocks are installed on the mounting base plate, and the positioning clamping blocks are located on both sides of the housing to be clamped. The two sides of the housing can be clamped and positioned by the positioning clamping blocks, so that the housing and the battery core are coaxial in the Y-axis direction.

[0011] Preferably, the positioning clamping block is mounted on the mounting base plate via a clamping cylinder.

[0012] Preferably, the suction cup is mounted on the push plate via a suction cup block.

[0013] Preferably, there are at least two suction cups.

[0014] The beneficial effects of the utility model are as follows: compared with the prior art, the mechanism effectively ensures that the shell does not contact the shell entry plate and the shell opening is not damaged by accurately controlling the positioning of the battery shell, thereby improving product quality and effectively avoiding the generation of foreign matter and dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a three-dimensional diagram of the shell entry plate in the utility model;

[0017] Figure 3 It is a cross-sectional view of the shell entry plate in the utility model;

[0018] Figure 4 It is a partial enlarged view of the utility model;

[0019] In the figure: 1. shell; 2. shell propulsion mechanism; 3. battery cell; 4. shell entry plate; 5. battery cell entrance; 6. suction cup; 7. shell entry step; 8. dust collecting groove; 9. module motor; 10. mounting base plate; 11. clamping cylinder; 12. push plate; 13. linear guide rail; 14. slider mounting plate; 15. positioning clamping block; 16. suction cup block; 17. movable end of module motor. DETAILED DESCRIPTION

[0020] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings and preferred embodiments.

[0021] like Figure 1 and Figure 2 As shown, a square battery shell insertion mechanism includes a shell pushing mechanism 2 for pushing the battery shell 1 and a shell insertion plate 4 for guiding the battery cell 3, the shell insertion plate is provided with a battery cell entrance 5, and the movable end of the shell pushing mechanism is provided with a suction cup 6 for adsorbing the bottom of the shell. In the prior art, the shell is pushed directly by the shell pushing mechanism. When the shell pushing mechanism stops, the shell will continue to move forward a short distance due to inertia, so that the position of the shell movement cannot be accurately guaranteed, thereby affecting the subsequent welding work. For this reason, the existing structure is improved by adding a suction cup to the movable end of the shell pushing mechanism to suck the shell. When the shell moves to the working state, the suction cup is released, and the position of the shell can be accurately controlled, thereby facilitating subsequent precise welding. In this mechanism, the shell pushing mechanism can be any one of an electric push rod, a cylinder, a hydraulic cylinder and a slide module.

[0022] Furthermore, the device also reduces the generation of dust during operation from the root. In the existing structure, when the shell is moved to the side of the shell entry plate by the shell pushing mechanism, it usually contacts the battery cell entrance on the shell entry plate, which sometimes damages the opening position of the shell. When it contacts the shell entry plate, some foreign dust is also generated. Therefore, in order to solve the above problems, the device also improves the shell entry plate. Specifically, Figure 3 As shown, a shell entry step 7 is provided below the cell entrance, and the shell entry step is lower than one side of the cell near the shell. The shell stops after moving to this position, and the shell opening is 0.8-1.2mm away from the shell entry step. In this solution, the shell opening of the shell is pushed to a position preferably 1mm away from the shell entry step, and does not contact the shell entry step, so the shell opening of the shell will not be damaged, thereby improving product quality. In addition, it can also effectively avoid the generation of foreign matter and dust.

[0023] like Figure 3As shown, the battery cell will inevitably contact the shell entry plate during the process of entering the shell. If there is some dust on the bottom of the battery cell, it is likely to stay there during the contact with the battery cell entrance. In order to collect and clean the dust, a dust receiving groove 8 is provided on one side of the shell entry step. During the shell entry process, the dust will automatically fall into the dust receiving groove, and the worker can clean the dust receiving groove regularly. In order to facilitate the battery cell to pass through the battery cell entrance smoothly, a chamfered structure is provided around the battery cell entrance.

[0024] like Figure 1 and Figure 4 As shown, in this device, the shell propulsion mechanism includes a module motor 9, a mounting base plate 10, a clamping cylinder 11 and a push plate 12. The mounting base plate is connected to the movable end 17 of the module motor. The module motor drives the mounting base to move back and forth. The clamping cylinder 11 is fixed on the mounting base plate 10. The piston rod of the cylinder is connected to the push plate. The suction cup is fixed on the push plate. When the shell is in place, the suction cup is driven by the clamping cylinder to move toward the shell to adsorb the shell. In this mechanism, there are at least two suction cups, and the suction cup is installed on the suction cup block 16. The interior of the suction cup block is hollow. The suction cup is threadedly connected to one end of the suction cup block. The other end of the suction cup block is connected to the air pipe. The suction cup block is vacuumed through the air pipe, so that the suction cup generates negative pressure to adsorb the shell. The shell propulsion mechanism has a simple structure and a low failure rate. The shell propulsion mechanism can adopt other existing structures, as long as the structure can push the shell to move. In order to enable the push plate to move more smoothly, two linear slide rails 13 are fixed on the mounting base plate, and a slider mounting plate 14 is slidably connected to the linear slide rails. One end of the slider mounting plate is connected to the push plate. The push plate is precisely guided by the slide rails so that the shell can be accurately aligned with the battery cell to facilitate insertion into the shell.

[0025] Furthermore, in order to be able to center the shell after it is in place, two positioning clamping blocks 15 are installed on the mounting base plate, and the positioning clamping blocks are located on both sides of the shell to be clamped. The distance between the two positioning clamping blocks of this structure must match the width of the shell to be positioned, and it is directly fixed to the mounting base plate by bolts. The positions of the two positioning clamping blocks in this scheme are fixed and cannot be adjusted, so it can only be applicable to the positioning of a single model of shell. Therefore, in order to be applicable to the positioning of multiple models of shells, this mechanism passes the positioning clamping block on the clamping cylinder (the clamping cylinder is not drawn in the figure, and it can actually be added), and installs the clamping cylinder on the mounting base plate. The distance between the two positioning clamping blocks is controlled by the clamping cylinder, so that it is applicable to different models of shells. The two sides of the shell can be clamped and positioned by the positioning clamping block, so that the shell and the battery cell are coaxial in the Y-axis direction.

[0026] When in use, when the battery cell is put into the shell, the two positioning clamping blocks first center the battery shell to position the battery shell in the Y-axis direction once, and the clamping cylinder drives the suction cup to move to the bottom of the battery shell, the suction cup is vacuumed, and the positioning is completed. The two positioning clamping blocks release the battery shell, and the module motor drives the suction cup to move to the shell entry position. The step at the shell entry position is about 1mm away from the battery shell opening. After reaching the shell entry position, the two positioning clamping blocks clamp the battery shell to ensure that the shell opening does not touch the step. The battery cell is shelled in multiple stages. After the shell entry is completed, the module motor moves to the unloading position, the suction cup is released and returns to the initial position, and the two positioning clamping blocks are released and return to the initial position for unloading.

[0027] For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications should also be regarded as within the protection scope of the utility model.

Claims

1. A square battery shell insertion mechanism, comprising a shell pushing mechanism for pushing the battery shell and a shell insertion plate for guiding the battery cell, wherein the shell insertion plate is provided with a battery cell inlet, characterized in that: The moving end of the shell propulsion mechanism is provided with a suction cup for adsorbing the bottom of the shell.

2. The square battery shell insertion mechanism according to claim 1, characterized in that: A shell entry step is provided below the cell entrance, and the shell is pushed by the shell pushing mechanism to a position where the shell opening is 0.8-1.2 mm away from the shell entry step.

3. The square battery shell insertion mechanism according to claim 2, characterized in that: A dust containing groove is arranged on one side of the shell entry step.

4. The square battery shell insertion mechanism according to claim 2, characterized in that: A chamfered structure is provided around the battery cell inlet.

5. The square battery shell insertion mechanism according to claim 1, characterized in that: The shell propulsion mechanism includes a module motor, a mounting base, a clamping cylinder and a push plate. The mounting base is connected to the movable end of the module motor, the clamping cylinder is fixed to the mounting base, the piston rod of the cylinder is connected to the push plate, and the suction cup is fixed to the push plate.

6. The square battery shell insertion mechanism according to claim 5, characterized in that: Two linear slide rails are fixed on the installation base plate, a slider installation plate is slidably connected to the linear slide rails, and one end of the slider installation plate is connected to the push plate.

7. The square battery shell insertion mechanism according to claim 5, characterized in that: Two positioning clamping blocks are installed on the installation base plate, and the positioning clamping blocks are located on both sides of the shell to be clamped.

8. The square battery shell insertion mechanism according to claim 7, characterized in that: The positioning clamping block is installed on the installation base plate through a clamping cylinder.

9. The square battery shell insertion mechanism according to claim 5, characterized in that: The suction cup is mounted on the push plate via a suction cup block.

10. The square battery shell insertion mechanism according to claim 9, characterized in that: There are at least two suction cups.

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