Battery aluminum shell feeding and expanding device

Abstract

The utility model discloses a battery aluminum shell feeding and expanding device, and relates to the technical field of power battery processing, a plurality of groups of vertical correction mechanisms are arranged in a bracket of a supporting table, and a plurality of groups of transverse correction mechanisms staggered with the vertical correction mechanisms are arranged on a back plate of the bracket of the supporting table; and a traction mechanism opposite to the drawing machine head is mounted at the other end of the bracket of the supporting table. According to the design, after a battery aluminum shell is expanded and formed through a drawing machine head, the first braking mechanism is used for driving butt-clamping operation of the vertical correction mechanism, vertical flat pressing rollers of the vertical correction mechanism are clamped to the left side and the right side of the battery aluminum shell in a butt-clamping mode, and meanwhile the second braking mechanism is used for driving butt-clamping operation of the transverse correction mechanism; the horizontal flat pressing rollers are oppositely clamped on the upper side and the lower side of the battery aluminum shell, the battery aluminum shell is horizontally pushed, pulled and limited and corrected in a left-right and up-down oppositely-clamping state, and the automatic expansion forming device has the self-correction capacity and is better in expansion forming stability.

Description

Technical Field

[0001] This utility model relates to the field of power battery processing, and in particular to a battery aluminum shell feeding and expansion device. Background Technology

[0002] Most existing power batteries use aluminum shells as their outer casing structure. To ensure the sealing of the power battery, the aluminum shell is usually formed by cold drawing, which draws it into a square tube structure. The aluminum shell can then be processed into shape by subsequent cutting. Therefore, the cold drawing expansion device is an important piece of equipment for processing and forming battery aluminum shells. As shown in the Chinese Patent Network, a cold rolling and drawing integrated machine for square shells of new energy batteries (publication announcement number CN218743985U) is used. This type of battery aluminum shell drawing device uses an inner drawing die for positioning and an outer die with rolling cold rolling rollers, which improves the elongation of the square tube, reduces the resistance and friction during drawing, and thus improves the precision and smoothness of the product.

[0003] However, the aforementioned patented and existing battery aluminum shell processing and forming devices have some shortcomings: The existing method of directly drawing the swell-formed battery aluminum shell is prone to deformation due to the thin inner wall of the aluminum shell, hindering continuous forming. Therefore, those skilled in the art have provided a battery aluminum shell feeding and swelling device to solve the problems mentioned in the background. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a battery aluminum shell feeding and expansion device, which solves the problem of poor forming stability in existing battery aluminum shell expansion forming devices mentioned in the background art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a battery aluminum shell feeding and expansion device, including a support platform and a drawing head installed at one end of the support platform bracket;

[0006] The support platform has multiple sets of vertical correction mechanisms arranged inside its bracket, and the support platform's back plate has multiple sets of horizontal correction mechanisms arranged in an alternating manner with the vertical correction mechanisms.

[0007] The vertical correction mechanism includes a first lead screw and a first guide rod. The outer side of the shaft of the first lead screw is symmetrically fitted with a first slide table that guides the first guide rod. Multiple sets of first rotary motors are arranged on the upper end of the frame of each set of first slide tables, and a vertical flat pressure roller is installed at the output end of the first rotary motor.

[0008] The lateral correction mechanism includes a support shell. Inside the support shell, a second guide rod and a second lead rod are arranged sequentially from front to back. The outer side of the shaft of the second lead rod is symmetrically fitted with a second slide table that guides the second guide rod. Multiple sets of second rotary motors are arranged at the front end of the frame of each set of second slide tables, and a lateral flat pressure roller is installed at the output end of the second rotary motor.

[0009] The other end of the support platform is equipped with a pulling mechanism that is opposite to the drawing head.

[0010] As a further technical solution of this utility model: a first braking mechanism for driving the vertical correction mechanism is provided on one side of the support platform;

[0011] The first braking mechanism includes a first braking shaft that is vertically mounted on a support platform along the direction of the first lead screw shaft. A first rotating motor that is fixed on the support platform is mounted on one end of the shaft of the first braking shaft. The shaft of the first braking shaft is arranged with multiple sets of first transmission worm gears that are opposite to the first lead screw. Each set of first lead screw shafts has a first transmission worm wheel that meshes with the first transmission worm gear at one end of the shaft.

[0012] As a further technical solution of this utility model: the first lead screw is divided by the center line, and the two sides of the center line are symmetrically provided with positive and negative threads that are adapted to the two sets of first slides.

[0013] As a further technical solution of this utility model: a second braking mechanism for driving the lateral correction mechanism is provided on the other side of the support platform bracket;

[0014] The second braking mechanism includes a second brake shaft that is vertically mounted on the support platform along the direction of the second lead screw shaft. A second brake motor that is fixed on the support platform is mounted on one end of the shaft of the second brake shaft. The shaft of the second brake shaft is arranged with multiple sets of second transmission worm gears that are opposite to the second lead screw. Each set of second lead screw shafts has a second transmission worm wheel that meshes with the second transmission worm gear at one end of the shaft.

[0015] As a further technical solution of this utility model: the second lead screw is divided by the center line, and the two sides of the center line are symmetrically provided with positive and negative threads that are adapted to the two sets of second slides.

[0016] As a further technical solution of this utility model: the vertical flat pressure roller and the horizontal flat pressure roller are arranged in an alternating manner.

[0017] As a further technical solution of this utility model: the pulling mechanism includes a winding frame, a winding wheel is connected inside the support of the winding frame, and a winding motor is installed on the upper end of the support of the winding frame. The winding wheel and the winding motor are connected by a transmission belt, and a winding rope is wound inside the winding wheel. A clamp is connected to the top end of the winding rope.

[0018] This utility model provides a battery aluminum shell feeding and expansion device, which has the following advantages compared with the prior art:

[0019] Beneficial effects:

[0020] The battery aluminum shell feeding and expansion device designed in this way, after the battery aluminum shell is expanded and formed by the drawing head, uses the first braking mechanism to drive the clamping operation of the vertical correction mechanism, clamping its vertical flat pressure rollers on the left and right sides of the battery aluminum shell. At the same time, uses the second braking mechanism to drive the clamping operation of the horizontal correction mechanism, clamping its horizontal flat pressure rollers on the upper and lower sides of the battery aluminum shell. In the state of left and right and upper and lower clamping, the battery aluminum shell is pushed, pulled and limited and corrected. Then, with the synchronous auxiliary pulling of the traction mechanism, the formed battery aluminum shell is continuously expanded and pulled out. It also has self-correcting ability and better expansion and forming stability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a battery aluminum casing feeding and expansion device.

[0022] Figure 2 This is a schematic diagram of the vertical correction mechanism in a battery aluminum shell feeding and expansion device;

[0023] Figure 3 This is a schematic diagram of the transverse correction mechanism in a battery aluminum shell feeding and expansion device.

[0024] Figure 4 This is a schematic diagram of the pulling mechanism in a battery aluminum shell feeding and expansion device.

[0025] In the diagram: 1. Support platform; 2. Drawing head; 3. Feeding platform; 4. Vertical flat pressure roller; 5. Horizontal flat pressure roller; 6. Pulling mechanism; 61. Winding frame; 62. Take-up roller; 63. Take-up motor; 64. Transmission belt; 65. Take-up rope; 66. Chuck; 7. First rotary motor; 8. First brake shaft; 9. First transmission worm gear; 10. First transmission worm; 11. First lead screw; 12. First guide rod; 13. First slide table; 14. First rotary motor; 15. Second brake motor; 16. Second brake shaft; 17. Second transmission worm; 18. Second transmission worm gear; 19. Second guide rod; 20. Second lead screw; 21. Support shell; 22. Second slide table; 23. Second rotary motor. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-4 This utility model provides a technical solution for a battery aluminum shell feeding and expansion device: A battery aluminum shell feeding and expansion device includes a support platform 1 and a pulling head 2 installed at one end of the support platform 1. The other end of the support platform 1 is equipped with a pulling mechanism 6 opposite to the pulling head 2. The pulling mechanism 6 includes a winding frame 61. A winding wheel 62 is connected inside the support of the winding frame 61, and a winding motor 63 is installed at the upper end of the support of the winding frame 61. The winding wheel 62 and the winding motor 63 are connected by a transmission belt 64. A winding pull rope 65 is wound inside the winding wheel 62. A clamp 66 is connected to the top of the winding pull rope 65. By clamping the clamp 66 in an inward support state to the inner wall of the battery aluminum shell, and controlling the combined operation of the winding motor 63 and the transmission belt 64, the winding wheel 62 is driven to rotate, the winding pull rope 65 is wound, and the clamp 66 is pulled to move, thereby assisting in the pulling of the battery aluminum shell.

[0028] Multiple sets of vertical correction mechanisms are arranged inside the support platform 1. A first braking mechanism for driving the vertical correction mechanisms is provided on one side of the support platform 1. The first braking mechanism includes a first braking shaft 8 that is vertically installed on the support platform 1 along the shaft direction of the first lead screw 11. A first rotating motor 7 fixed on the support platform 1 is installed at one end of the shaft of the first braking shaft 8. Multiple sets of first transmission worm gears 10 are arranged on the shaft of the first braking shaft 8 opposite to the first lead screw 11. A first transmission worm wheel 9 that meshes with the first transmission worm gear 10 is provided at one end of the shaft of each set of first lead screw 11. By controlling the first rotating motor 7 to work, the first braking shaft 8 is driven to rotate, which in turn drives the first transmission worm gear 10 to rotate. The meshing transmission between the first transmission worm gear 10 and the first transmission worm wheel 9 drives the first lead screw 11 to rotate, which serves as a driving source to drive the vertical flat pressure rollers 4 to clamp on both sides of the battery aluminum shell.

[0029] The vertical correction mechanism includes a first lead screw 11 and a first guide rod 12. The outer side of the shaft of the first lead screw 11 is symmetrically fitted with a first slide table 13 that guides the first guide rod 12. Multiple sets of first rotary motors 14 are arranged on the upper end of the frame of each set of first slide tables 13, and a vertical flat pressure roller 4 is installed at the output end of the first rotary motor 14. The first lead screw 11 is divided by a center line, and positive and negative threads that are adapted to the two sets of first slide tables 13 are symmetrically arranged on both sides of the center line. When the first lead screw 11 rotates, its positive and negative threads push the two sets of first slide tables 13 to slide in opposite directions along the first guide rod 12, clamping the vertical flat pressure roller 4 on both sides of the battery aluminum shell. On the one hand, the rotation of the vertical flat pressure roller 4 driven by the first rotary motor 14 is used to roll and push the battery aluminum shell after expansion and forming. On the other hand, it plays a clamping and limiting role, performing real-time flat repair work on the battery aluminum shell to avoid deformation.

[0030] The support platform 1 has multiple sets of transverse correction mechanisms arranged in a staggered manner with the vertical correction mechanism on the back plate of the bracket. On the other side of the support platform 1, there is a second braking mechanism that drives the transverse correction mechanism. The second braking mechanism includes a second brake shaft 16 that is vertically mounted on the support platform 1 along the shaft direction of the second lead screw 20. A second brake motor 15 fixed on the support platform 1 is mounted on one end of the shaft of the second brake shaft 16. Multiple sets of second transmission worm gears 17 are arranged on the shaft of the second brake shaft 16 that are opposite to the second lead screw 20. Each set of second lead screw 20 has a second transmission worm wheel 18 that meshes with the second transmission worm gear 17 at one end of the shaft. By controlling the second brake motor 15 to work, the second brake shaft 16 is driven to rotate, which in turn drives the second transmission worm gear 17 to rotate. The meshing transmission between the second transmission worm gear 17 and the second transmission worm wheel 18 drives the second lead screw 20 to rotate, which serves as a driving source to drive the transverse flat pressure rollers 5 to clamp on both sides of the battery aluminum shell.

[0031] The lateral correction mechanism includes a support shell 21. Inside the support shell 21, from front to back, are arranged a second guide rod 19 and a second lead screw 20. The outer side of the shaft of the second lead screw 20 is symmetrically fitted with a second slide table 22 that guides the second guide rod 19. Multiple sets of second rotary motors 23 are arranged at the front end of the frame of each set of second slide tables 22. The output end of the second rotary motor 23 is equipped with a lateral flat pressure roller 5. The second lead screw 20 is divided by a center line, and on both sides of the center line, positive and negative threads are arranged symmetrically to match the two sets of second slide tables 22. When the second lead screw 20 rotates, its positive and negative threads push the two sets of second slide tables 22 to slide in opposite directions along the second guide rod 19, clamping the lateral flat pressure rollers 5 on the upper and lower sides of the battery aluminum shell. On the one hand, the second rotary motor 23 drives the rotation of the lateral flat pressure rollers 5 to roll and push the battery aluminum shell after expansion and forming. On the other hand, it also acts as a clamping and limiting mechanism to perform real-time flat correction work on the battery aluminum shell and avoid deformation.

[0032] The vertical flat pressure roller 4 and the horizontal flat pressure roller 5 are arranged in an alternating manner. By alternating the vertical flat pressure roller 4 and the horizontal flat pressure roller 5, they can clamp and limit the battery aluminum shell in the left and right and up and down during the forming and conveying process, and perform real-time flat repair on the battery aluminum shell to ensure the square state of the battery aluminum shell. Moreover, their left and right and up and down advancement can act as a pulling component to push the formed battery aluminum shell to continue to expand and form.

[0033] The working principle of this utility model is as follows: When the aluminum battery shell is split-formed, after the split-formed aluminum battery shell is cold-drawn by the drawing head 2, it is gradually conveyed to the loading platform 3. Then, the clamp 66 in the pulling mechanism 6 is clamped in the inner wall of the aluminum battery shell in an inward support state, and the combined operation of the winding motor 63, the transmission belt 64, and the winding wheel 62 is controlled to wind up the winding rope 65, pull the clamp 66 to move, and assist in the pulling of the aluminum battery shell.

[0034] While the aluminum battery casing is being drawn, the first rotating motor 7 is controlled to rotate, driving the first brake shaft 8 to rotate. The meshing of the first transmission worm 10 and the first transmission worm wheel 9 drives the first lead screw 11 to rotate. Using its positive and negative threads, the two opposing sets of first slides 13 slide against each other along the first guide rod 12, clamping the vertical flat pressure rollers 4 on the left and right sides of the aluminum battery casing. Simultaneously, the second brake motor 15 is controlled to rotate, driving the second brake shaft 16 to rotate. The meshing of the second transmission worm 17 and the second transmission worm wheel 18 drives the second lead screw 20 to rotate. Using its positive and negative threads, the two opposing sets of second slides 22 slide against each other along the second guide rod 19, clamping the horizontal flat pressure rollers 5 on the upper and lower sides of the aluminum battery casing. The vertical flat pressure rollers 4 and the horizontal flat pressure rollers 5 then clamp and limit the left and right, upper and lower sides of the aluminum battery casing, providing both left-right and upper-lower propulsion and real-time flattening of the aluminum battery casing to ensure its square shape and prevent deformation during the expansion forming process.

[0035] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A battery aluminum casing feeding and expansion device, characterized in that, Includes a support platform (1) and a drawing head (2) installed at one end of the support platform (1); The support platform (1) has multiple sets of vertical correction mechanisms arranged inside the support frame, and the support platform (1) has multiple sets of horizontal correction mechanisms arranged intersecting with the vertical correction mechanisms on the support back plate. The vertical correction mechanism includes a first lead screw (11) and a first guide rod (12). The outer side of the shaft of the first lead screw (11) is symmetrically fitted with a first slide (13) that guides the first guide rod (12). Each set of first slides (13) has multiple sets of first rotary motors (14) arranged on the upper end of the frame, and the output end of the first rotary motor (14) is equipped with a vertical flat pressure roller (4). The lateral correction mechanism includes a support shell (21). Inside the support shell (21), a second guide rod (19) and a second lead screw (20) are arranged sequentially from front to back. The outer side of the shaft of the second lead screw (20) is symmetrically fitted with a second slide (22) that guides the second guide rod (19). Each set of second slides (22) has multiple sets of second rotary motors (23) arranged at the front end of the frame. The output end of the second rotary motor (23) is equipped with a lateral flat roller (5). The other end of the support platform (1) is equipped with a pulling mechanism (6) that is opposite to the drawing head (2).

2. The battery aluminum casing feeding and expansion device according to claim 1, characterized in that, The support platform (1) is provided with a first braking mechanism on one side of the bracket to drive the vertical correction mechanism; The first braking mechanism includes a first braking shaft (8) that is vertically mounted on a support platform (1) along the shaft direction of the first lead screw (11). A first rotating motor (7) fixed on the support platform (1) is mounted on one end of the shaft of the first braking shaft (8). The shaft of the first braking shaft (8) is arranged with multiple sets of first transmission worm gears (10) opposite to the first lead screw (11). Each set of first lead screws (11) has a first transmission worm wheel (9) that meshes with the first transmission worm gear (10) at one end of the shaft.

3. The battery aluminum casing feeding and expansion device according to claim 1, characterized in that, The first lead screw (11) is divided by the center line, and the two sides of the center line are symmetrically provided with positive and negative threads that are adapted to the two sets of first slides (13).

4. The battery aluminum casing feeding and expansion device according to claim 1, characterized in that, A second braking mechanism for driving the lateral correction mechanism is provided on the other side of the support platform (1); The second braking mechanism includes a second braking shaft (16) that is vertically mounted on the support platform (1) along the shaft direction of the second lead screw (20). A second braking motor (15) that is fixed on the support platform (1) is mounted on one end of the shaft of the second braking shaft (16). The shaft of the second braking shaft (16) is arranged with multiple sets of second transmission worm gears (17) opposite to the second lead screw (20). Each set of second lead screws (20) has a second transmission worm wheel (18) that meshes with the second transmission worm gear (17) at one end of the shaft.

5. The battery aluminum casing feeding and expansion device according to claim 1, characterized in that, The second lead screw (20) is divided by the center line, and the two sides of the center line are symmetrically provided with positive and negative threads that are adapted to the two sets of second slides (22).

6. The battery aluminum casing feeding and expansion device according to claim 1, characterized in that, The vertical flat roller (4) and the horizontal flat roller (5) are arranged in an alternating pattern.

7. The battery aluminum casing feeding and expansion device according to claim 1, characterized in that, The pulling mechanism (6) includes a winding frame (61), a winding wheel (62) is connected inside the support of the winding frame (61), and a winding motor (63) is installed on the upper end of the support of the winding frame (61). The winding wheel (62) and the winding motor (63) are connected by a transmission belt (64). A winding pull rope (65) is wound inside the winding wheel (62), and a clamp (66) is connected to the top end of the rope of the winding pull rope (65).

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