Rolling device for battery cell shell

Abstract

The utility model relates to a rolling device for a battery cell shell, which comprises a feeding unit, a rolling unit, a rolling unit and a rolling unit, the rolling unit is arranged on one side of the feeding unit, and a rolling channel coinciding with the moving path of the battery cell shell is arranged on the rolling unit; and the guiding unit is arranged on the side, away from the feeding unit, of the rolling unit. Compared with the prior art, the battery cell shell rolling device has the advantages that the safety of operators is ensured in the process of automatically finishing the movement of the battery cell shell through the feeding unit and the guide unit, and the traction force applied to the battery cell shell by the guide unit can ensure that the battery cell shell cannot be bent and deformed in the rolling process, so that the product quality is improved. And the size precision of the battery cell shell is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core shell processing devices, in particular to a rolling device for battery core shells. Background Art

[0002] The square aluminum shell of the power cell is a key component of the battery cell system of new energy vehicles. Its core function is to carry and protect the power cell. As the public's expectations for the range of new energy vehicles continue to increase, engineers are increasingly strict with the standards for the square aluminum shell of the power cell. They require that its structure is extremely strong to ensure that it can provide excellent protection for the power cell, and emphasize its lightweight characteristics to avoid unnecessary consumption of electricity due to excessive weight. Therefore, after the square aluminum shell of the power cell is formed, it will undergo steps such as rolling process to further consolidate its structural strength.

[0003] However, most of the existing rolling equipment for square aluminum shells of power batteries rely on operators to manually place the completed battery cell shells into the rolling machinery. This operation mode not only has high safety risks and is prone to causing crushing accidents, but also in the absence of a corresponding guiding mechanism, the battery cell shells are not accurately positioned during the rolling process, resulting in deformation of the battery cell shells after rolling, which cannot meet the design requirements. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a rolling device for a battery core shell in view of the current status of the prior art.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: a rolling device for a battery cell shell is proposed, which is used to roll a battery cell shell with a rectangular cross section, and the rolling device includes:

[0006] A feeding unit, on which a pushing plate is movably provided, and the battery cell shell to be processed is sleeved on the outer side of the pushing plate;

[0007] A rolling unit, which is arranged on one side of the feeding unit, and is provided with a rolling channel that coincides with the moving path of the battery cell shell, and is used to roll the side wall of the battery cell shell when the battery cell shell passes through the rolling channel;

[0008] A guide unit, which is arranged on a side of the rolling unit away from the feeding unit, and is used to apply a constant pulling force to the battery cell casing after passing through the rolling channel, wherein the pulling force is parallel to a moving direction of the battery cell casing;

[0009] The battery cell casing can pass through the rolling channel driven by the pushing plate, and the entire battery cell casing can be kept straightened by the pulling of the guide unit.

[0010] In the above-mentioned rolling device for battery cell casings, the size of the rolling channel is adjustable to adapt to the rolling operation of battery cell casings of different sizes.

[0011] In the above-mentioned rolling device for a battery cell casing, the rolling unit comprises:

[0012] A main frame, wherein two mutually perpendicular moving channels are arranged in the main frame, and the two moving channels are interconnected and intersect at the middle position of the main frame;

[0013] A seat platform, two of which are arranged in each of the moving channels;

[0014] Rollers, each of the bases is rotatably provided with a roller, and the gaps between the four rollers are used to form the rolling channel.

[0015] In the above-mentioned rolling device for a battery cell casing, the rolling unit further comprises:

[0016] A connecting rod, one end of which is inserted into the moving channel from the outer wall of the main frame and is threadedly connected to the seat, each seat corresponds to at least two connecting rods, and a pressing portion is provided at one end of the connecting rod away from the seat;

[0017] An elastic member, which is sleeved on the outer side of the connecting rod, one end of the elastic member abuts against the outer side wall of the main frame body, and the other end abuts against the pressing portion;

[0018] An adjusting rod, which is threadedly connected to the main frame, one end of which passes through the outer wall of the main frame and extends into the moving channel and movably abuts against the seat, each seat corresponds to at least one adjusting rod, and the adjusting rod is used to adjust the size of the rolling channel;

[0019] A guide plate is connected to the main frame and covers at least a portion of the moving channel. The guide plate is movably abutted against the base and is used to provide a limit for the base when it moves in the moving channel.

[0020] In the above-mentioned rolling device for the battery cell shell, a fixed shaft is arranged on the seat, a bearing is sleeved on the fixed shaft, and the roller is sleeved on the outer side wall of the bearing.

[0021] In the above-mentioned rolling device for a battery cell casing, a scale is provided on the main frame, and an indicator corresponding to the scale is provided on the base.

[0022] The above-mentioned rolling device for a battery cell casing further includes:

[0023] A first driving member connected to the main frame;

[0024] A first movable seat, which is movably disposed on the main frame and connected to an output end of the first driving member, wherein the first driving member is used to drive the first movable seat to move closer to or farther from the rolling channel;

[0025] Two second driving members are connected to the first moving seat, and the output ends of the two second driving members are arranged opposite to each other and are both provided with top blocks. The two top blocks are used to press the outer wall of the battery cell shell to enable the battery cell shell to pass through the rolling channel.

[0026] In the above-mentioned rolling device for a battery cell casing, the feeding unit comprises:

[0027] The first machine;

[0028] A third driving member, which is arranged on the first platform;

[0029] A first screw rod, which is rotatably mounted on the first machine platform and is transmission-connected to an output end of the third driving member, wherein the third driving member is used to drive the first screw rod to rotate on the machine platform;

[0030] The second movable seat is movably arranged on the first machine platform and is threadably connected to the first screw rod. The pushing plate is connected to the second movable seat.

[0031] In the above-mentioned rolling device for a battery cell casing, the guiding unit comprises:

[0032] The second machine;

[0033] a fourth driving member connected to the second machine platform;

[0034] A second screw rod, which is rotatably mounted on the second machine platform and is transmission-connected to an output end of the fourth driving member, and the fourth driving member is used to drive the second screw rod to rotate;

[0035] A third movable seat, which is movably disposed on the second machine platform and is threadedly connected to the second screw rod;

[0036] A positioning plate connected to the third movable seat;

[0037] Two fifth driving members are connected to the third movable seat, the output ends of the two fifth driving members are arranged opposite to each other and are arranged on both sides of the positioning plate respectively, and the two fifth driving members are used to clamp the ends of the battery cell housing.

[0038] Compared with the prior art, the utility model has the advantage that the movement of the battery cell shell is automatically completed by the feeding unit and the guiding unit, thereby ensuring the life safety of the operator, and the traction force applied by the guiding unit to the battery cell shell can ensure that the battery cell shell will not bend or deform during the rolling process, thereby ensuring the dimensional accuracy of the battery cell shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a three-dimensional diagram of this scheme;

[0040] Figure 2 is a stereogram of the rolling unit;

[0041] Figure 3 It is a stereoscopic view of the rolling unit from another direction;

[0042] Figure 4 It is a three-dimensional diagram of the partial structure of the rolling unit;

[0043] Figure 5 is a stereogram of the guide unit;

[0044] Figure 6 It is a perspective view of the feeding unit.

[0045] In the figure, 1, feeding unit; 2, pushing plate; 3, rolling unit; 4, rolling channel; 5, guiding unit; 6, main frame; 7, moving channel; 8, seat; 9, roller; 10, connecting rod; 11, pressing part; 12, elastic member; 13, adjusting rod; 14, guide plate; 15, fixed shaft; 16, scale; 17, indicating member; 18, first driving member; 19, first moving seat; 20, second driving member; 21, top block; 22, first machine; 23, third driving member; 24, first screw rod; 25, second moving seat; 26, second machine; 27, fourth driving member; 28, second screw rod; 29, third moving seat; 30, positioning plate; 31, fifth driving member. DETAILED DESCRIPTION

[0046] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0047] like Figures 1 to 6As shown, a rolling device for a battery cell shell of the utility model is used for rolling a battery cell shell with a rectangular cross-section, and the rolling device comprises: a feeding unit 1, on which a pushing plate 2 is movably provided, and the battery cell shell to be processed is sleeved on the outside of the pushing plate 2; a rolling unit 3, which is arranged on one side of the feeding unit 1, and a rolling channel 4 which coincides with the moving path of the battery cell shell is arranged on the rolling unit 3, and when the battery cell shell passes through the rolling channel 4, the side wall of the battery cell shell is rolled; a guiding unit 5, which is arranged on a side of the rolling unit 3 away from the feeding unit 1, and the guiding unit 5 is used to apply a constant pulling force to the battery cell shell after passing through the rolling channel 4; the battery cell shell can pass through the rolling channel 4 driven by the pushing plate 2, and the entire battery cell shell is kept straight due to the pulling of the guiding unit 5.

[0048] During operation, the battery cell shell to be rolled is sleeved on the outer side wall of the pushing plate 2, and the feeding unit 1 drives the pushing plate 2 to move toward the rolling unit 3, and feeds the battery cell shell into the rolling channel 4. At this time, the rolling unit 3 rolls the side wall of the battery cell shell through the rolling channel 4. After the end of the battery cell shell passes through the rolling channel 4, the guiding unit 5 clamps the end of the battery cell shell to apply a constant pulling force to the battery cell shell, and the pulling force is parallel to the moving direction of the battery cell shell. Under the joint action of the feeding unit 1, the entire battery cell shell passes through the rolling channel 4, and the pulling force applied to the battery cell shell by the feeding unit 1 is parallel to the moving direction of the battery cell shell, so as to prevent the battery cell shell from being deformed during the movement, thereby ensuring the dimensional accuracy of the battery cell shell.

[0049] In this solution, the feeding unit 1 and the guiding unit 5 automatically complete the movement of the battery shell, thereby ensuring the life safety of the operator. In addition, the traction force applied by the guiding unit 5 to the battery shell can ensure that the battery shell will not bend or deform during the rolling process, thereby ensuring the dimensional accuracy of the battery shell.

[0050] Preferably, the size of the rolling channel 4 can be adjusted according to the required size of the battery cell casing to adapt to the rolling operation of battery cell casings of different sizes.

[0051] Based on the above embodiments, this solution makes the following optimizations to the structure of the rolling device:

[0052] In this solution, the rolling unit 3 includes: a main frame 6, in which two mutually perpendicular moving channels 7 are arranged, the two moving channels 7 are interconnected and intersect at the middle position of the main frame 6; a base 8, in each moving channel 7 there are two bases 8; a roller 9, on each base 8 there is a roller 9 rotatably arranged, and the gaps between the four rollers 9 are used to form a rolling channel 4.

[0053] The main frame 6 is preferably a square frame, and the two movable channels 7 are formed by a cross-shaped through groove processed in the middle position of the square frame. When the feeding unit 1 feeds the battery cell casing into the rolling channel 4 through the pushing plate 2, the side wall of the battery cell casing drives the roller 9 to roll on the seat 8, and the roller 9 can roll the side wall of the battery cell casing when rolling.

[0054] Furthermore, the rolling unit 3 of the present scheme also includes: a connecting rod 10, one end of which is inserted into the movable channel 7 from the outer wall of the main frame 6 and is threadedly connected to the base 8, each base 8 corresponds to at least two connecting rods 10, and a pressing portion 11 is provided at one end of the connecting rod 10 away from the base 8; an elastic member 12, which is sleeved on the outer side of the connecting rod 10, one end of the elastic member 12 abuts against the outer wall of the main frame 6, and the other end abuts against the pressing portion 11; an adjusting rod 13, which is threadedly connected to the main frame 6, one end of the adjusting rod 13 passes through the outer wall of the main frame and extends into the movable channel 7 and movably abuts against the base 8, each base 8 corresponds to at least one adjusting rod 13, and the adjusting rod 13 is used to adjust the size of the rolling channel 4; a guide plate 14, which is connected to the main frame 6 and covers at least a part of the movable channel 7, and the guide plate 14 movably abuts against the base 8, and is used to provide a limit for the base 8 when it moves in the movable channel 7.

[0055] When the rolling channel 4 needs to be adjusted to a smaller size, the adjusting rod 13 is first rotated to move the adjusting rod 13 toward the main frame 6. When the adjusting rod 13 moves, the seat 8 is pushed to move toward the rolling channel 4. When the seat 8 moves, the connecting rod 10 connected thereto is driven to move synchronously. Since the elastic member 12 is sleeved on the outer wall of the connecting rod 10, when the connecting rod 10 moves, the pressing portion 11 presses on the elastic member 12, causing the elastic member 12 to undergo elastic deformation.

[0056] When the rolling channel 4 needs to be enlarged, the adjusting rod 13 is rotated in the opposite direction to move the adjusting rod 13 away from the main frame 6. When the adjusting rod 13 moves, the elastic member 12 recovers and drives the seat 8 to move away from the rolling channel 4 through the connecting rod 10.

[0057] A fixed shaft 15 is provided on the base 8 , a bearing is sleeved on the fixed shaft 15 , and the roller 9 is sleeved on the outer side wall of the bearing to realize the rotation connection of the roller 9 on the base 8 .

[0058] Preferably, a scale 16 is provided on the main frame, and an indicator 17 corresponding to the scale 16 is provided on the base 8. When adjusting the size of the rolling channel 4, the indicator 17 and the scale 16 are used to record the moving distance of the base 8, and visualize the moving distance of the base 8 when the adjusting rod 13 is rotated, so that the adjustment of the size of the rolling channel 4 is more accurate and rapid.

[0059] In order to enable the rolling channel 4 to roll to the outer wall of the battery cell shell, the rolling channel 4 is generally smaller than the width of the battery cell shell before rolling. In order to enable the battery cell shell to smoothly enter the rolling channel 4, the present scheme also includes: a first driving member 18, which is connected to the main frame 6; a first movable seat 19, which is movably arranged on the main frame 6 and connected to the output end of the first driving member 18, and the first driving member 18 is used to drive the first movable seat 19 to move closer to or away from the rolling channel 4; two second driving members 20 connected to the first movable seat 19, the output ends of the two second driving members 20 are arranged opposite to each other and are both provided with top blocks 21, and the two top blocks 21 are used to press on the outer wall of the battery cell shell to enable the battery cell shell to pass through the rolling channel 4.

[0060] After the push plate 2 transports the battery cell casing to the rolling channel 4, the first driving member 18 first drives the first moving seat 19 to move toward the direction of the battery cell casing, thereby moving the two top blocks 21 to both sides of the end of the battery cell casing. Then, the second driving member 20 drives the two top blocks 21 to move toward the direction of the battery cell casing, so that the top blocks 21 squeeze the side walls of the battery cell casing, making the end size of the battery cell casing smaller, thereby ensuring that the battery cell casing can pass through the rolling channel 4 smoothly. Then, the two second driving members 20 drive the two top blocks 21 to reset, making way for the battery cell casing to enter the rolling channel 4.

[0061] Preferably, the first driving member 18 and the second driving member 20 are both cylinders.

[0062] The feeding unit 1 includes: a first machine table 22; a third driving member 23, which is arranged on the first machine table 22; a first screw rod 24, which is rotatably arranged on the first machine table 22 and is transmission-connected to the output end of the third driving member 23, and the third driving member 23 is used to drive the first screw rod 24 to rotate on the machine table; a second movable seat 25, which is movably arranged on the first machine table 22 and is threadedly connected to the first screw rod 24, and the push plate 2 is connected to the second movable seat 25.

[0063] During operation, the third driving member 23 drives the first screw rod 24 to rotate, thereby driving the second movable seat 25 to move along the axial direction of the first screw rod 24. When the second movable seat 25 moves, it drives the pushing plate 2 thereon to move, thereby realizing the feeding operation of the feeding unit 1 on the battery cell casing.

[0064] Preferably, the third driving member 23 is a motor.

[0065] The guide unit 5 includes: a second machine table 26; a fourth driving member 27, which is connected to the second machine table 26; a second screw rod 28, which is rotatably arranged on the second machine table 26 and is transmission-connected to the output end of the fourth driving member 27, and the fourth driving member 27 is used to drive the second screw rod 28 to rotate; a third movable seat 29, which is movably arranged on the second machine table 26 and is threadedly connected to the second screw rod 28; a positioning plate 30, which is connected to the third movable seat 29; two fifth driving members 31 connected to the third movable seat 29, the output ends of the two fifth driving members 31 are arranged opposite to each other, and are arranged on both sides of the positioning plate 30, and the two fifth driving members 31 are used to clamp at the end of the battery cell housing.

[0066] After the end of the battery cell casing passes through the rolling channel 4, the fourth driving member 27 drives the second screw rod 28 to rotate, thereby driving the third movable seat 29 to move toward the direction of the battery cell casing. After the two fifth driving members 31 move to both sides of the end of the battery cell casing and the positioning plate 30 is inserted into the battery cell casing, the two fifth driving members 31 act simultaneously to clamp the end of the battery cell casing. Then, the fourth driving member 27 moves in the direction and together with the feeding unit 1 drives the battery cell casing to pass through the rolling channel 4.

[0067] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0068] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0069] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0071] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the scope defined by the spirit of the present invention.

Claims

1. A rolling device for a battery cell shell, used for rolling a battery cell shell with a rectangular cross section, characterized in that: The rolling device comprises: A feeding unit, on which a pushing plate is movably provided, and the battery cell shell to be processed is sleeved on the outer side of the pushing plate; a rolling unit disposed on one side of the feeding unit, the rolling unit being provided with a rolling channel that coincides with the moving path of the battery cell housing, and being used to roll the side wall of the battery cell housing when the battery cell housing passes through the rolling channel; a guiding unit, which is arranged on a side of the rolling unit away from the feeding unit, and is used to apply a constant pulling force to the battery cell casing after passing through the rolling channel, wherein the pulling force is parallel to the moving direction of the battery cell casing; The battery cell casing can pass through the rolling channel driven by the pushing plate, and the entire battery cell casing can be kept straightened by being pulled by the guiding unit.

2. A rolling device for a battery cell casing according to claim 1, characterized in that: The size of the rolling channel is adjustable to accommodate rolling operations on battery cell casings of different sizes.

3. A rolling device for a battery cell casing according to claim 1, characterized in that: The rolling unit comprises: A main frame body, wherein two mutually perpendicular movable channels are provided in the main frame body, and the two movable channels are interconnected and intersect at a middle position of the main frame body; Seats, two of which are provided in each of the movable channels; Rollers, each of the bases is rotatably provided with a roller, and the gaps between the four rollers are used to form the rolling channel.

4. A rolling device for a battery cell casing according to claim 3, characterized in that: The rolling unit further includes: A connecting rod, one end of which is inserted into the movable channel from the outer wall of the main frame and is threadedly connected to the base, each base has at least two connecting rods, and a pressing portion is provided at one end of the connecting rod away from the base; an elastic member, which is sleeved on the outer side of the connecting rod, with one end of the elastic member abutting against the outer side wall of the main frame body and the other end abutting against the pressing portion; An adjusting rod, which is threadedly connected to the main frame, one end of which passes through the outer wall of the main frame and extends into the movable channel and movably abuts against the seat, each seat corresponds to at least one adjusting rod, and the adjusting rod is used to adjust the size of the rolling channel; A guide plate is connected to the main frame and covers at least a portion of the moving channel. The guide plate is movably abutted against the base and is used to provide a limit for the base when it moves in the moving channel.

5. A rolling device for a battery cell casing according to claim 3, characterized in that: A fixed shaft is provided on the seat, a bearing is sleeved on the fixed shaft, and the roller is sleeved on the outer side wall of the bearing.

6. A rolling device for a battery cell casing according to claim 3, characterized in that: The main frame is provided with a scale, and the base is provided with an indicator corresponding to the scale.

7. A rolling device for a battery cell casing according to claim 3, characterized in that: Also includes: a first driving member connected to the main frame; a first movable seat, movably disposed on the main frame and connected to an output end of the first driving member, wherein the first driving member is used to drive the first movable seat to move closer to or away from the rolling channel; Two second driving members are connected to the first movable seat, and the output ends of the two second driving members are arranged opposite to each other and are both provided with a top block. The two top blocks are used to press on the outer wall of the battery cell shell to enable the battery cell shell to pass through the rolling channel.

8. The rolling device for a battery cell casing according to claim 1, characterized in that: The feeding unit comprises: The first machine; a third driving member, which is arranged on the first platform; a first screw rod, which is rotatably mounted on the first machine platform and is transmission-connected to an output end of the third driving member, wherein the third driving member is used to drive the first screw rod to rotate on the machine platform; The second movable seat is movably arranged on the first machine platform and is threadedly connected to the first screw rod. The pushing plate is connected to the second movable seat.

9. A rolling device for a battery cell casing according to claim 1, characterized in that: The guiding unit comprises: Second machine; a fourth driving member connected to the second platform; a second screw rod, which is rotatably mounted on the second machine platform and is transmission-connected to an output end of the fourth driving member, wherein the fourth driving member is used to drive the second screw rod to rotate; a third movable seat, which is movably disposed on the second machine platform and is threadedly connected to the second screw rod; a positioning plate connected to the third movable seat; Two fifth driving members are connected to the third movable seat, and the output ends of the two fifth driving members are arranged opposite to each other and respectively arranged on both sides of the positioning plate. The two fifth driving members are used to clamp the ends of the battery cell housing.

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