Bonding mechanism

Abstract

The utility model relates to a pasting mechanism, which is used for pasting an insulating sheet on a battery cell and comprises a four-axis robot, an upper plate arranged on the four-axis robot and a lower plate connected with the upper plate, a movable connecting piece is arranged between the upper plate and the lower plate, a pasting suction cup is arranged on the bottom surface of the lower plate, and the pasting suction cup adsorbs the top surface of the insulating sheet. A rolling assembly is arranged on the upper plate and comprises a plurality of rollers, the lower plate is stressed to carry the insulating strip to move upwards, and the rollers make contact with and roll the side face of the insulating strip. According to the utility model, the insulating strip is adsorbed by the sticking suction cup and aligned with the battery cell, and then is rolled by the rolling assembly, so that the insulating strip is stuck on the surface of the battery cell, the automatic sticking of the insulating strip can be realized, the automation degree is effectively improved, and an automatic sticking mode is adopted to replace a manual sticking mode; the risks of pasting deviation and easy secondary correction during manual pasting can be avoided, the quality uniformity of insulation sheet pasting can be ensured, and the pasting efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery cell processing technology, and in particular to a bonding mechanism. Background Technology

[0002] On energy storage battery module production lines, each module typically consists of 6 to 11 cells arranged in a row. Irregularly shaped insulating sheets need to be adhered to the surface of the cells at both ends of the module to protect them. Since these insulating sheets are adhesive-backed plastic sheets, their application requires a specific sequence of actions and must be pressed into place in one go. Once applied, peeling off and reapplying is laborious; therefore, manual application is currently the most common method.

[0003] Because irregularly shaped insulating sheets are made of hard material and have strong adhesive, manual pasting currently has problems such as many pasting steps, large pasting deviations, difficulty in secondary correction, and low efficiency.

[0004] Therefore, there is a need for a bonding mechanism that can automatically bond insulating sheets, improve the level of automation, ensure the uniformity of bonding quality, and increase bonding efficiency. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, this utility model provides an adhesive mechanism.

[0006] The technical solution of this utility model is as follows:

[0007] An adhesive bonding mechanism for bonding an insulating sheet to a battery cell includes a four-axis robot, an upper plate mounted on the four-axis robot, and a lower plate connected to the upper plate. A movable connector is provided between the upper plate and the lower plate. An adhesive suction cup is provided on the bottom surface of the lower plate, which adsorbs the top surface of the insulating sheet. A rolling assembly is provided on the upper plate, which includes several rollers. The lower plate is subjected to force and carries the insulating sheet upward. The rollers contact and roll the sides of the insulating sheet.

[0008] As a further improvement of this utility model, the movable connector includes a bonding optical axis fixing seat on the lower plate, a bonding optical axis on the bonding optical axis fixing seat, and a linear bearing on the upper plate. The bonding optical axis passes through the linear bearing, and a limiting ring is provided at the end of the bonding optical axis away from the bonding optical axis fixing seat.

[0009] As a further improvement of this utility model, a buffer is provided between the upper plate and the lower plate.

[0010] As a further improvement of this utility model, the buffer includes a spring sleeved on the adhesive optical axis, and the spring is disposed between the linear bearing and the adhesive optical axis fixing seat.

[0011] As a further improvement of this utility model, a gasket is provided between the linear bearing and the limiting ring.

[0012] As a further improvement of this utility model, there are four movable connectors, which are evenly distributed.

[0013] As a further improvement of this utility model, the rolling assembly further includes several rotating shafts and several roller arms. The number of rotating shafts, roller arms and rollers are the same and correspond one-to-one. The rollers are disposed at the first end of the roller arm, and the second end of the roller arm is disposed on the rotating shaft and rotates around the rotating shaft. An elastic element is provided between the roller arm and the upper plate.

[0014] As a further improvement of this utility model, the elastic element is a tension spring.

[0015] As a further improvement of this utility model, both the upper plate and the lower plate are rectangular, and the rolling assembly is disposed on the edges of the three sides of the upper plate.

[0016] As a further improvement of this utility model, the bottom of the adhesive suction cup is provided with an adhesive suction cup pad.

[0017] According to the above-described solution, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model uses a suction cup to adsorb the insulating sheet and align it with the battery cell, and then uses a rolling assembly to roll the insulating sheet to stick it to the surface of the battery cell, which can realize automatic bonding of the insulating sheet and effectively improve the degree of automation.

[0019] 2. This utility model adopts an automatic pasting method instead of manual pasting, which can avoid the risk of pasting deviation and easy secondary correction during manual pasting, and can ensure the uniformity of the quality of the insulation sheet pasting and improve the pasting efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a structural schematic diagram of the present invention without a four-axis robot;

[0022] Figure 3 This is a structural schematic diagram of the movable connector of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the rolling assembly of this utility model.

[0024] In the diagram: 71. Four-axis robot; 72. Upper plate; 73. Lower plate; 74. Movable connector; 741. Adhesive optical axis fixing seat; 742. Adhesive optical axis; 743. Linear bearing; 744. Limiting ring; 745. Spring; 746. Washer; 75. Adhesive suction cup; 76. Rolling assembly; 761. Roller; 762. Rotary axis; 763. Roller arm; 764. Tension spring; 77. Adhesive suction cup pad. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0028] See Figure 1 and Figure 2 This utility model provides an adhesive bonding mechanism for bonding insulating sheets to battery cells. The adhesive bonding mechanism includes a four-axis robot 71, an upper plate 72 mounted on the four-axis robot 71, and a lower plate 73 connected to the upper plate 72. A movable connector 74 is provided between the upper plate 72 and the lower plate 73. An adhesive suction cup 75 is provided on the bottom surface of the lower plate 73 to adsorb the top surface of the insulating sheet. A rolling assembly 76 is provided on the upper plate 72, and the rolling assembly 76 includes a plurality of rollers 761.

[0029] During operation, the adhesive suction cup 75 adsorbs the insulating sheet. Driven by the four-axis robot 71, the adhesive suction cup 75 carries the insulating sheet to above the battery cell. The four-axis robot 71 slowly lowers the upper plate 72, lower plate 73, adhesive suction cup 75, and insulating sheet. When the top of the insulating sheet contacts the battery cell, as the four-axis robot 71 continues to descend, the adhesive suction cup 75 receives an upward thrust from the battery cell. The lower plate 73 is forced to carry the insulating sheet upward, and the roller 761 contacts and rolls the side of the insulating sheet. This invention uses the adhesive suction cup 75 to adsorb the insulating sheet and the four-axis robot 71 to transport the insulating sheet to above the battery cell for alignment. Then, the rolling assembly rolls the insulating sheet to adhere it to the surface of the battery cell. This achieves automatic adhesive sheet pasting, effectively improving the degree of automation. At the same time, this invention uses automatic pasting instead of manual pasting, which avoids the risk of pasting deviation and easy secondary correction during manual pasting, ensuring the uniformity of the quality of the insulating sheet pasting and improving the pasting efficiency.

[0030] See Figure 3 As an embodiment of this utility model, the movable connector 74 includes a bonding optical axis fixing seat 741 disposed on the lower plate 73, a bonding optical axis 742 disposed on the bonding optical axis fixing seat 741, and a linear bearing 743 disposed on the upper plate 72. The bonding optical axis 742 passes through the linear bearing 743. The lower plate 73 can move up and down with the bonding optical axis fixing seat 741. A limiting ring 744 is provided at the end of the bonding optical axis 742 away from the bonding optical axis fixing seat 741. The bonding optical axis fixing seat 741 and the limiting ring 744 limit the bonding optical axis 742, ensuring that the bonding optical axis 742 can move within the linear bearing 743, preventing the bonding optical axis 742 from separating from the linear bearing 743 and falling off, thereby improving the overall working stability and reliability of the movable connector 74.

[0031] During operation: The lower plate 73 and the adhesive optical axis fixing seat 741 are in their lowest position under their own weight. At this time, the limiting ring 744 contacts the upper plate 72 and limits the adhesive optical axis 742. When the lower plate 73 is pushed upward, the lower plate 73, the adhesive optical axis fixing seat 741 and the adhesive optical axis 742 all move upward until the adhesive optical axis fixing seat 741 contacts the upper plate 72. At this time, the adhesive optical axis fixing seat 741 restricts the adhesive optical axis 742 from continuing to move upward, that is, the lower plate 73 and the adhesive optical axis fixing seat 741 are in their highest position.

[0032] In one embodiment of this utility model, a buffer is provided between the upper plate 72 and the lower plate 73. The buffer can provide a certain buffering force for the movement of the lower plate 73, preventing the lower plate 73 from rising rapidly under force, causing the adhesive optical axis fixing seat 741 to collide with the upper plate 72, thereby preventing damage to the adhesive optical axis fixing seat 741 or the upper plate 72. This can improve the service life of the adhesive optical axis fixing seat 741 and the upper plate 72. The buffer can adopt the following two structures:

[0033] Structure 1: The buffer includes a spring 745 sleeved on the adhesive optical axis 742, and the spring 745 is disposed between the linear bearing 743 and the adhesive optical axis fixing seat 741;

[0034] Structure 2: The buffer includes several elastic connecting members disposed between the upper plate 72 and the lower plate 73. The first end of the elastic connecting member is fixed on the upper plate 72, and the second end of the elastic connecting member is fixed on the lower plate 73. The elastic connecting member can be a compression spring, a gas spring, a hydraulic spring, a rubber spring, etc.

[0035] As an embodiment of this utility model, a shim 746 is provided between the linear bearing 743 and the limiting ring 744. The function of the shim 746 is similar to that of the buffer. When the limiting ring 744 descends with the adhesive optical axis 742, the shim 746 provides a buffering force to the limiting ring 744, which can prevent the limiting ring 744 from colliding with the upper plate 72 due to excessive descent speed, thereby preventing damage to the limiting ring 744 or the upper plate 72 and improving the service life of the limiting ring 744 and the upper plate 72.

[0036] As one embodiment of this utility model, there are multiple movable connectors 74, which are evenly distributed between the upper plate 72 and the lower plate 73. They can guide the lifting and lowering of the lower plate 73 at multiple locations, improving the smoothness of the lifting and lowering of the lower plate 73. At the same time, the upper plate 72 and the lower plate 73 are connected by the movable connectors 74. By setting multiple movable connectors 74, the connection stability between the lower plate 73 and the upper plate 72 and the balance of the lower plate 73 can be improved, ensuring the working reliability and stability of the lower plate 73. Preferably, there are four movable connectors 74, which are evenly distributed.

[0037] See Figure 4As one embodiment of this utility model, the rolling assembly 76 further includes several rotating shafts 762 and several roller arms 763. Rollers 761 are disposed at the first end of the roller arms 763, and the second end of the roller arms 763 is disposed on the rotating shafts 762 and rotates around the rotating shafts 762. The rollers 761 can expand outward or contract inward through the roller arms 763, making it suitable for insulating sheets of various sizes and improving the overall applicability. An elastic element is provided between the roller arms 763 and the upper plate 72, and the elastic element can support the roller arms 761. 63 provides a pulling force in the direction of the upward plate 72, so that the roller arm 763 continuously holds an inward contraction force. Preferably, the elastic element is a tension spring 764. When the roller 761 contacts the side of the insulating sheet, under the action of the inward contraction force of the roller arm 763, the roller 761 can adhere to the insulating sheet and roll the insulating sheet, thereby making the insulating sheet better adhere to the battery cell and improving the adhesion quality of the insulating sheet. The rotating shaft 762, the roller arm 763 and the roller 761 can adopt the following four structures:

[0038] Structure 1: The number of rotating shafts 762, roller arms 763 and rollers 761 are the same and correspond one-to-one. That is, there is only one roller arm 763 on one rotating shaft 762, and only one roller 761 on one roller arm 763. Each roller 761 is controlled by one roller arm 763.

[0039] Structure 2: The number of rotating shafts 762 and roller arms 763 are the same and correspond one-to-one, that is, one roller arm 763 is provided on one rotating shaft 762; one roller arm 763 is provided with multiple rollers 761, that is, one roller arm 763 can control multiple rollers 761;

[0040] Structure 3: A rotating shaft 762 is provided with multiple roller arms 763, that is, multiple roller arms 763 can rotate around the same rotating shaft 762; the number of roller arms 763 is the same as that of rollers 761 and they correspond one-to-one, that is, only one roller 761 is provided on one roller arm 763, and each roller 761 is controlled by one roller arm 763;

[0041] Structure 4: A rotating shaft 762 is provided with multiple roller arms 763, that is, multiple roller arms 763 can rotate around the same rotating shaft 762; a roller arm 763 is provided with multiple rollers 761, that is, a roller arm 763 can control multiple rollers 761.

[0042] As one embodiment of this utility model, the shapes of the upper plate 72 and the lower plate 73 can be designed according to the shape of the specific insulating sheet. Since the commonly used insulating sheet is a three-sided bent structure, both the upper plate 72 and the lower plate 73 are rectangular. The rolling assembly 76 is set on the edges of the three sides of the upper plate 72. The rolling assembly 76 can roll the three sides of the insulating sheet at the same time, which can improve the bonding efficiency of the insulating sheet and the bonding quality of the insulating sheet.

[0043] As an embodiment of this utility model, the bottom of the adhesive suction cup 75 is provided with an adhesive suction cup pad 77, which can effectively protect the adhesive suction cup 75, avoid direct collision between the adhesive suction cup 75 and the insulating sheet, thereby preventing damage to the adhesive suction cup 75 and improving the service life of the adhesive suction cup 75.

[0044] In summary, this utility model provides a pasting mechanism that uses a pasting suction cup 75 to adsorb the insulating sheet, a four-axis robot 71 to transport the insulating sheet above the battery cell for alignment, and a rolling assembly to roll the insulating sheet onto the surface of the battery cell. This achieves automatic pasting of the insulating sheet, effectively improving the degree of automation. Furthermore, this utility model uses automatic pasting instead of manual pasting, avoiding the risks of pasting deviations and secondary corrections that occur with manual pasting, ensuring consistent quality of the insulating sheet pasting, and improving pasting efficiency. The pasting optical axis fixing seat 741 and the limiting ring 744 limit the pasting optical axis 742, ensuring that the pasting optical axis 742 can move within the linear bearing 743, preventing the pasting optical axis 742 from separating from the linear bearing 743 and detaching. The dropper 746 provides cushioning for the limiting ring 744, preventing it from colliding with the upper plate 72 due to excessive descent speed, thus avoiding damage to the limiting ring 744 or the upper plate 72 and extending their service life. The inward contraction force of the roller arm 763 allows the roller 761 to adhere to and roll the insulating sheet, resulting in better adhesion between the insulating sheet and the battery cell and improving the adhesion quality. The adhesive suction cup pad 77 effectively protects the adhesive suction cup 75, preventing direct collision between the adhesive suction cup 75 and the insulating sheet, thus extending its service life.

[0045] It should be emphasized that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A bonding mechanism for bonding insulating sheets to a battery cell, characterized in that, The device includes a four-axis robot (71), an upper plate (72) mounted on the four-axis robot (71), and a lower plate (73) connected to the upper plate (72). A movable connector (74) is provided between the upper plate (72) and the lower plate (73). An adhesive suction cup (75) is provided on the bottom surface of the lower plate (73). The adhesive suction cup (75) adsorbs the top surface of the insulating sheet. A rolling assembly (76) is provided on the upper plate (72). The rolling assembly (76) includes several rollers (761). The lower plate (73) is subjected to force and carries the insulating sheet upward. The rollers (761) contact and roll the side surface of the insulating sheet.

2. The adhesive mechanism according to claim 1, characterized in that, The movable connector (74) includes a bonding optical axis fixing seat (741) disposed on the lower plate (73), a bonding optical axis (742) disposed on the bonding optical axis fixing seat (741), and a linear bearing (743) disposed on the upper plate (72). The bonding optical axis (742) passes through the linear bearing (743), and a limiting ring (744) is provided at one end of the bonding optical axis (742) away from the bonding optical axis fixing seat (741).

3. The pasting mechanism according to claim 2, characterized in that, A buffer is provided between the upper plate (72) and the lower plate (73).

4. The adhesive mechanism according to claim 3, characterized in that, The buffer includes a spring (745) sleeved on the adhesive optical axis (742), the spring (745) being disposed between the linear bearing (743) and the adhesive optical axis fixing seat (741).

5. The adhesive mechanism according to claim 4, characterized in that, A gasket (746) is provided between the linear bearing (743) and the limiting ring (744).

6. The adhesive mechanism according to any one of claims 1-5, characterized in that, There are four movable connectors (74), which are evenly distributed.

7. The adhesive mechanism according to claim 1, characterized in that, The rolling assembly (76) further includes a plurality of rotating shafts (762) and a plurality of roller arms (763). The number of rotating shafts (762), roller arms (763) and rollers (761) are the same and correspond one-to-one. The rollers (761) are disposed at the first end of the roller arms (763), and the second end of the roller arms (763) is disposed on the rotating shafts (762) and rotates around the rotating shafts (762). An elastic element is provided between the roller arms (763) and the upper plate (72).

8. The adhesive mechanism according to claim 7, characterized in that, The elastic element is a tension spring (764).

9. The adhesive mechanism according to claim 1, characterized in that, Both the upper plate (72) and the lower plate (73) are rectangular, and the rolling assembly (76) is disposed on the edges of the three sides of the upper plate (72).

10. The adhesive mechanism according to claim 1, characterized in that, The bottom of the adhesive suction cup (75) is provided with an adhesive suction cup pad (77).

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