Bending jig

Abstract

The utility model discloses a bending jig, and belongs to the technical field of batteries. The bending jig comprises a mounting unit which comprises a bearing table; the positioning unit comprises a positioning block, the positioning block is arranged on the bearing table, and a product positioning groove is formed in the positioning block; and the bending unit comprises a lifting plate and bending heads, the two bending heads are arranged on the side, facing the positioning block, of the lifting plate at intervals in the first direction, and the lifting plate can be close to or away from the positioning block in the second direction. According to the nickel sheet bending device, the bending precision and uniformity of products are guaranteed, nickel sheets can be automatically bent, and batch processing of the products is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a bending jig. Background Art

[0002] The 18650 lithium battery is a relatively common lithium battery in electronic products. The 18650 battery is a lithium-ion battery, and the "18650" in its name represents the size specification of the battery, that is, the diameter is 18 mm and the length is 65 mm. As an efficient and rechargeable lithium-ion battery, the 18650 battery plays an important role in modern technology and industrial fields.

[0003] When welding the nickel sheets at both ends of the multi-string assembled protection board of the 18650 battery, the nickel sheets need to be bent. In the prior art, manual bending is adopted, which is not only time-consuming and laborious, but also unable to ensure the accuracy and uniformity of the bending size of the nickel sheets.

[0004] Therefore, there is an urgent need to provide a bending jig to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a bending jig to ensure the bending accuracy and uniformity of products, be able to automatically bend nickel sheets, and contribute to the batch processing of products.

[0006] To achieve the above purpose, the following technical solutions are provided:

[0007] The bending jig includes:

[0008] An installation unit, including a bearing platform;

[0009] A positioning unit, including a positioning block, the positioning block is arranged on the bearing platform, and a product positioning groove is arranged on the positioning block;

[0010] A bending unit, including a lifting plate and a bending head, the two bending heads are arranged at intervals along a first direction on the side of the lifting plate facing the positioning block, and the lifting plate can move closer to or away from the positioning block along a second direction.

[0011] As an optional solution of the bending jig, the installation unit further includes a fixing plate, the fixing plate is arranged on the bearing platform, and the bending jig further includes:

[0012] A linear driving mechanism, one end of the linear driving mechanism is arranged on the fixing plate, the other end of the linear driving mechanism is connected to the lifting plate, and the linear driving mechanism is used to drive the lifting plate to move along the second direction.

[0013] As an alternative solution for the bending fixture, the linear drive mechanism includes a cylinder. The fixed end of the cylinder is arranged on the fixed plate, and the telescopic end of the cylinder is connected to the lifting plate.

[0014] As an alternative solution for the bending fixture, the linear drive mechanism includes a ball screw stage module. The mounting housing of the ball screw stage module is arranged on the fixed plate, and the slide of the ball screw stage module is connected to the lifting plate.

[0015] As an alternative solution for the bending fixture, an observation window is arranged on the fixed plate.

[0016] As an alternative solution for the bending fixture, a cross plate is arranged on the fixed plate, and a first linear bearing is arranged on the lifting plate. The mounting unit further includes:

[0017] A first guide rod is arranged between the cross plate and the bearing table. The first linear bearing is sleeved on the first guide rod and can slide along the second direction.

[0018] As an alternative solution for the bending fixture, a reinforcing rib plate is arranged on the side of the fixed plate away from the linear drive mechanism. The reinforcing rib plate is located between the fixed plate and the bearing table.

[0019] As an alternative solution for the bending fixture, a second linear bearing is arranged on the lifting plate. The bending unit further includes:

[0020] A floating pressure plate is located on the side of the lifting plate facing the positioning block;

[0021] A second guide rod, one end of the second guide rod is fixedly connected to the floating pressure plate, and the other end of the second guide rod passes through the second linear bearing;

[0022] An elastic member is sleeved on the second guide rod. The elastic member is located between the floating pressure plate and the lifting plate.

[0023] As an alternative solution for the bending fixture, a pressing head is arranged at one end of the floating pressure plate facing the positioning block.

[0024] As an alternative solution for the bending fixture, the bending fixture further includes a start button and a control module. The control module is arranged in the bearing table, the start button is arranged on the bearing table, and both the start button and the linear drive mechanism are electrically connected to the control module.

[0025] Compared with the prior art, the beneficial effects of the present utility model are:

[0026] The bending fixture provided by the present utility model is sequentially provided with a bearing table, a positioning block, and a lifting plate from bottom to top in the height direction. A protection plate with nickel sheets at both ends is placed in the product positioning groove of the positioning block to limit the position of the protection plate. Wherein, two bending heads are arranged at intervals along a first direction at the bottom of the lifting plate. The lifting plate drives the two bending heads to move downward simultaneously along a second direction, thereby bending the corresponding nickel sheets on the protection plate. By using the bending fixture provided by the present utility model to bend the nickel sheets, the bending accuracy and uniformity of the product are ensured, and the nickel sheets can be automatically bent, which is helpful for the batch processing of the product. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments of the present utility model. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the embodiments of the present utility model and these drawings.

[0028] Figure 1 It is a schematic structural diagram of the nickel sheet of the protection plate in the unbent state in the embodiment of the present utility model;

[0029] Figure 2 It is a schematic structural diagram of the nickel sheet of the protection plate in the bent state in the embodiment of the present utility model;

[0030] Figure 3 It is a schematic structural diagram of the lifting plate of the bending fixture in the first position in the embodiment of the present utility model;

[0031] Figure 4 It is a schematic structural diagram of the lifting plate of the bending fixture in the second position in the embodiment of the present utility model;

[0032] Figure 5 It is an exploded view of the bending fixture in the embodiment of the present utility model;

[0033] Figure 6 It is a schematic structural diagram of the bending unit in the embodiment of the present utility model.

[0034] Reference Signs:

[0035] 100. Protection Plate; 101. Nickel Sheet;

[0036] 1. Installation Unit; 2. Positioning Unit; 3. Bending Unit; 4. Linear Driving Mechanism;

[0037] 11. Bearing Table; 12. Fixed Plate; 121. Observation Window; 13. Cross Plate; 14. First Guide Rod; 15. Reinforcing Rib Plate; 16. Start Button; 17. Power Switch;

[0038] 21. Positioning block; 211. Product positioning groove;

[0039] 31. Lifting plate; 32. Bent elbow; 33. First linear bearing; 34. Second linear bearing; 35. Floating pressure plate; 36. Second guide rod; 37. Elastic member; 38. Press head. Detailed implementation manners

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0041] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed when in use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0042] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0043] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and cannot be understood as a limitation to the present utility model.

[0044] To ensure the bending accuracy and uniformity of the product, be able to automatically bend nickel sheets, and contribute to the batch processing of the product, this embodiment provides a bending jig. The following is combined with Figures 1 to 6A detailed description of the specific content of this embodiment is provided. It should be noted that the first direction mentioned in this embodiment is the Figure 3 X direction in Figure 3 , and the second direction mentioned in this embodiment is the

[0045] Z direction in Figures 1 to 5 . As shown in Figures 1 to 5 , the bending fixture in this embodiment includes a mounting unit 1, a positioning unit 2, and a bending unit 3. The mounting unit 1 includes a carrier table 11. The positioning unit 2 includes a positioning block 21. The positioning block 21 is arranged on the carrier table 11, and a product positioning groove 211 is provided on the positioning block 21. The positioning block 21 can be fixedly connected to the carrier table 11 through fasteners such as bolts or screws. The bending unit 3 includes a lifting plate 31 and a bending head 32. Two bending heads 32 are arranged at intervals along the first direction on the side of the lifting plate 31 facing the positioning block 21, and the lifting plate 31 can move closer to or away from the positioning block 21 along the second direction.

[0046] In short, for the bending fixture provided in this embodiment, a carrier table 11, a positioning block 21, and a lifting plate 31 are sequentially arranged from bottom to top in the height direction. The protection plate 100 with nickel sheets 101 at both ends is placed in the product positioning groove 211 of the positioning block 21 to limit the position of the protection plate 100. Among them, two bending heads 32 are arranged at intervals along the first direction at the bottom of the lifting plate 31. By driving the two bending heads 32 to move downward simultaneously along the second direction through the lifting plate 31, the corresponding nickel sheets 101 on the protection plate 100 can be bent, ensuring the bending accuracy and uniformity of the product, being able to automatically bend the nickel sheets 101, and facilitating the batch processing of the product.

[0047] As shown in Figures 2 to 6 , the mounting unit 1 further includes a fixing plate 12. The fixing plate 12 is arranged on the carrier table 11. The bending fixture further includes a linear driving mechanism 4. One end of the linear driving mechanism 4 is arranged on the fixing plate 12, and the other end of the linear driving mechanism 4 is connected to the lifting plate 31. The linear driving mechanism 4 is used to drive the lifting plate 31 to move along the second direction. By adding the linear driving mechanism 4 as a power source, the linear driving mechanism 4 can drive the lifting plate 31 to move along the second direction. Moving downward makes the lifting plate 31 with the bending head 32 in the second position capable of bending the nickel sheet 101, and moving upward makes the lifting plate 31 in the first position to complete the reset.

[0048] Exemplarily, as shown in Figure 5 , the linear driving mechanism 4 includes a cylinder. The fixed end of the cylinder is arranged on the fixing plate 12, and the telescopic end of the cylinder is connected to the lifting plate 31. By controlling the cylinder, the position of the lifting plate 31 can be adjusted, and then the bending head 32 can press the nickel sheet 101 to be bent. Exemplarily, the bending head 32 in this embodiment has an L-shaped structure.

[0049] Exemplarily, in other embodiments, the linear drive mechanism 4 includes a lead screw and slide table module. The mounting shell of the lead screw and slide table module is disposed on the fixed plate 12, and the slide table of the lead screw and slide table module is connected to the lifting plate 31. The motor drives the lead screw to rotate, and the lead screw drives the slide table to move in the second direction, thereby realizing the movement of the lifting plate 31.

[0050] Furthermore, an observation window 121 is provided on the fixed plate 12. By adding the observation window 121, it is convenient for users to observe the bending state of the nickel sheet 101 at any time.

[0051] Furthermore, a cross plate 13 is provided on the fixed plate 12, and a first linear bearing 33 is provided on the lifting plate 31. The mounting unit 1 further includes a first guide rod 14 disposed between the cross plate 13 and the carrier 11. The first linear bearing 33 is sleeved on the first guide rod 14 and can slide along the second direction. By adding the first guide rod 14 extending along the second direction, it is convenient to guide the lifting plate 31 to only rise or fall along the second direction.

[0052] Furthermore, a reinforcing rib plate 15 is provided on the side of the fixed plate 12 away from the linear drive mechanism 4, and the reinforcing rib plate 15 is located between the fixed plate 12 and the carrier 11. The linear drive mechanism 4 is provided in front of the fixed plate 12. By adding the reinforcing rib plate 15 on the back of the fixed plate 12, it is convenient to improve the structural strength of the fixed plate 12.

[0053] Furthermore, a second linear bearing 34 is provided on the lifting plate 31. The bending unit 3 further includes a floating pressure plate 35, a second guide rod 36, and an elastic member 37. The floating pressure plate 35 is located on the side of the lifting plate 31 facing the positioning block 21. One end of the second guide rod 36 is fixedly connected to the floating pressure plate 35, and the other end of the second guide rod 36 passes through the second linear bearing 34. The elastic member 37 is sleeved on the second guide rod 36, and the elastic member 37 is located between the floating pressure plate 35 and the lifting plate 31. Exemplarily, the elastic member 37 can be a spring. When the bending head 32 contacts the nickel sheet 101 downward, and at the same time the floating pressure plate 35 presses on the upper surface of the protection plate 100, as the lifting plate 31 continues to descend, the floating pressure plate 35 presses the protection plate 100 tightly and ensures that the position of the protection plate 100 remains unchanged, and the bending head 32 moves downward to bend the nickel sheet 101.

[0054] Furthermore, a pressure head 38 is provided at one end of the floating pressure plate 35 facing the positioning block 21. The material of the pressure head 38 can be, but is not limited to, rubber and other materials, which can not only ensure the pressing and positioning effect of the floating pressure plate 35 on the protection plate 100, but also reduce the wear on the protection plate 100.

[0055] Further, the bending fixture further includes a start button 16 and a control module. The control module is disposed within the carrier 11. The start button 16 and the power switch 17 are disposed on the carrier 11. The power switch 17, the start button 16, and the linear drive mechanism 4 are all electrically connected to the control module. Turning on the power switch 17 is used to energize the linear drive mechanism 4. By pressing the start button 16, the control module can be used to control the operation of the linear drive mechanism 4. For example, when the start button 16 is pressed, the cylinder serving as the linear drive mechanism 4 can drive the lifting plate 31 to descend for bending the nickel sheet 101. When the start button 16 is released, the piston rod of the cylinder resets.

[0056] Note that the above is only the preferred embodiment of the present invention and the applied technical principle. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein. Various obvious changes, re-adjustments, and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A bending jig, characterized in that: include: The mounting unit (1) comprises a carrying platform (11); A positioning unit (2), comprising a positioning block (21), wherein the positioning block (21) is arranged on the supporting platform (11), and a product positioning groove (211) is arranged on the positioning block (21); The bending unit (3) comprises a lifting plate (31) and a bending head (32), wherein the two bending heads (32) are arranged at intervals along a first direction on a side of the lifting plate (31) facing the positioning block (21), and the lifting plate (31) can approach or move away from the positioning block (21) along a second direction.

2. The bending jig according to claim 1, characterized in that: The mounting unit (1) further comprises a fixing plate (12), wherein the fixing plate (12) is arranged on the bearing platform (11), and the bending fixture further comprises: A linear drive mechanism (4), one end of the linear drive mechanism (4) is arranged on the fixed plate (12), the other end of the linear drive mechanism (4) is connected to the lifting plate (31), and the linear drive mechanism (4) is used to drive the lifting plate (31) to move along the second direction.

3. The bending jig according to claim 2, characterized in that: The linear drive mechanism (4) comprises a cylinder, the fixed end of the cylinder is arranged on the fixed plate (12), and the telescopic end of the cylinder is connected to the lifting plate (31).

4. The bending jig according to claim 2, characterized in that: The linear drive mechanism (4) comprises a screw slide module, the mounting shell of the screw slide module is arranged on the fixed plate (12), and the slide of the screw slide module is connected to the lifting plate (31).

5. The bending jig according to claim 2, characterized in that: The fixing plate (12) is provided with an observation window (121).

6. The bending jig according to claim 2, characterized in that: The fixing plate (12) is provided with a transverse plate (13), the lifting plate (31) is provided with a first linear bearing (33), and the mounting unit (1) further comprises: The first guide rod (14) is arranged between the transverse plate (13) and the bearing platform (11); the first linear bearing (33) is sleeved on the first guide rod (14) and can slide along the second direction.

7. The bending jig according to claim 2, characterized in that: A reinforcing rib (15) is provided on a side of the fixing plate (12) away from the linear drive mechanism (4), and the reinforcing rib (15) is located between the fixing plate (12) and the bearing platform (11).

8. The bending jig according to claim 2, characterized in that: The lifting plate (31) is provided with a second linear bearing (34), and the bending unit (3) further comprises: A floating pressure plate (35) is located on a side of the lifting plate (31) facing the positioning block (21); A second guide rod (36), one end of the second guide rod (36) is fixedly connected to the floating pressure plate (35), and the other end of the second guide rod (36) is inserted into the second linear bearing (34); An elastic member (37) is sleeved on the second guide rod (36), and the elastic member (37) is located between the floating pressure plate (35) and the lifting plate (31).

9. The bending jig according to claim 8, characterized in that: A pressure head (38) is provided at one end of the floating pressure plate (35) facing the positioning block (21).

10. The bending jig according to any one of claims 2 to 9, characterized in that: The bending jig further comprises a start button (16) and a control module, wherein the control module is arranged in the support platform (11), the start button (16) is arranged on the support platform (11), and the start button (16) and the linear drive mechanism (4) are both electrically connected to the control module.

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