A bending device

Abstract

The utility model relates to battery production technical field discloses a kind of bending device, including product limiting mechanism, and with the bending limiting mechanism and linkage bending mechanism of product limiting mechanism adjacent arrangement;Wherein, the linkage bending mechanism includes: limiting component;Bending component is slidably arranged on the limiting component;And with the linkage bending drive component of limiting component and the rolling abutment of bending component.This utility model provides a kind of bending device, not only can effectively reduce bending device overall volume, to reduce the floor space of battery production;And can effectively reduce the cost of bending device overall, to realize the cost reduction and benefit increase management of battery production.Meanwhile, it can also effectively guarantee the quality of bending forming of pole lug, pole piece, connecting plate etc.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, specifically to a bending device. Background Technology

[0002] Bending is a common processing technique in battery production; it is required for adaptive shaping in processes such as tab processing, electrode sheet processing, and connecting plate processing.

[0003] Existing bending devices can generally be divided into two types according to the bending method: stamping bending devices and rolling bending devices. However, regardless of the bending method used, the drive mechanism for the bending part and the drive mechanism for the positioning and clamping part are generally designed as separate units. That is, the bending drive mechanism drives the bending part to bend the part of the battery to be bent; while the positioning drive mechanism drives the positioning block to position and clamp the adjacent part of the battery to be bent.

[0004] The split-drive design allows the bending and positioning parts to operate independently, ensuring their independence. However, having separate drive mechanisms for each part not only tends to result in a larger overall size of the bending device but also increases its overall cost.

[0005] Therefore, researching a technology that can effectively reduce the overall volume and cost of bending devices is of decisive significance for achieving cost reduction and efficiency improvement management in battery production. Utility Model Content

[0006] To address the shortcomings of the prior art, this utility model provides a bending device that combines a bending limiting mechanism with a linkage bending mechanism to achieve both clamping and limiting of the product's adjacent portion to be bent, and bending of that portion. Furthermore, the limiting component and bending component in the linkage bending mechanism are driven by the same linkage bending drive component. Compared to existing bending devices with their own independent drive structures, this not only effectively reduces the overall size of the bending device, thus reducing the space required for battery production, but also effectively lowers the overall cost of the bending device, thereby achieving cost reduction and efficiency improvement in battery production.

[0007] The technical effects to be achieved by this utility model are realized through the following technical aspects: This utility model provides a bending device, including a product limiting mechanism, and a bending limiting mechanism and a linkage bending mechanism disposed adjacent to the product limiting mechanism; wherein, the linkage bending mechanism includes: Limiting components are used to limit the pressure on the first surface of the product adjacent to the part to be bent; A bending component is slidably mounted on the limiting component to bend the part of the product to be bent. And a linkage bending drive component, which rolls and abuts against the limiting component and the bending component, to drive the limiting component to press and limit the first surface of the product adjacent to the part to be bent, and to drive the bending component to bend the part of the product to be bent.

[0008] As one preferred embodiment, the linkage bending drive component includes: A stepped linkage block is provided with a first stepped portion that rolls against the limiting component and a second stepped portion that rolls against the bending component. A linkage guide unit is disposed at the bottom of the stepped linkage block to guide the movement of the stepped linkage block; And a bending drive unit, the drive end of which is connected to the stepped linkage block, for driving the stepped linkage block to reciprocate along the linkage guide unit, so as to realize the position adjustment of the limiting component and the bending component.

[0009] As one preferred embodiment, the stepped linkage block includes: The main body of the stepped linkage block; The first step is located at the first height of the step linkage block body, and is used to roll and abut against the limiting component under the driving action of the bending drive unit. The second step is located at the second height of the step linkage block body, and is used to roll and abut against the bending assembly under the driving action of the bending drive unit. And a ramp portion, which is provided on the side of the stepped linkage block body away from the bending drive unit, to guide and buffer the movement of the limiting component and the bending component; Furthermore, the first height is less than the second height, and the width of the first step is greater than the width of the second step.

[0010] As one preferred embodiment, the limiting component includes: Limit component mounting bracket; The first limiting unit is rolled and slidably disposed on the limiting component mounting bracket, and is used to press and limit the first surface of the product adjacent to the part to be bent under the driving action of the linked bending drive component.

[0011] As one preferred embodiment, the bending assembly includes: Bending blocks are used to bend the part of a product that needs to be bent. And a bending linkage unit, which is connected to the bending block and slidably disposed on the limiting component, is used to bend the part of the product to be bent under the driving action of the linkage bending drive component.

[0012] As one preferred embodiment, the limiting component and the bending component are disposed on one side of the linkage bending drive component, or are disposed in groups on both sides of the linkage bending drive component.

[0013] As one preferred embodiment, the bending limiting mechanism includes: Limiting mechanism mounting bracket; An angle-adjustable limiting component is provided on the limiting mechanism mounting frame to press and limit the second side of the product adjacent to the part to be bent. The first side and the second side are two opposite sides of the product adjacent to the part to be bent.

[0014] As one preferred embodiment, the angle-adjustable limiting component includes: The second limiting unit is used to press and limit the second side of the product adjacent to the part to be bent; And an angle-adjustable drive unit, the drive end of which is connected to the second limiting unit and is oscillatingly mounted on the limiting mechanism mounting bracket, for driving the second limiting unit to press and limit the second side of the product adjacent to the part to be bent.

[0015] As one preferred embodiment, the product limiting mechanism includes: Product limiting components are used to achieve product placement and limiting. And a limit adjustment component, connected to the product limit component, for driving the product limit component to move, so as to adjust the product placement position.

[0016] As one preferred embodiment, the bending device further includes: The product loading and unloading mechanism is arranged adjacent to the product limiting mechanism to realize the loading and unloading of products.

[0017] In summary, this utility model has at least the following advantages: 1. The bending device provided by this utility model utilizes a combination of a bending limiting mechanism and a linkage bending mechanism to achieve clamping and limiting of the product's adjacent part to be bent and bending of the product's part to be bent; moreover, the limiting component and the bending component in the linkage bending mechanism are driven by the same set of linkage bending drive components. Compared with the bending devices in the prior art that each has its own independent driving structure, this not only effectively reduces the overall size of the bending device to reduce the space occupied by battery production, but also effectively reduces the overall cost of the bending device to achieve cost reduction and efficiency improvement management in battery production.

[0018] 2. The bending device provided by this utility model uses a linkage bending drive component to adjust the position of the limiting component and the bending component by driving the stepped linkage block to move and rolling against the limiting component and the bending component. Compared with the linear drive method, the sliding and rolling combined drive method can effectively reduce the instantaneous impact force applied to the product by the limiting component and the bending component. Especially when bending thinner parts of the battery such as tabs, electrodes, and connecting plates, this drive method can prevent the tabs, electrodes, and connecting plates from being damaged due to excessive instantaneous impact force, thereby effectively ensuring the bending quality of the tabs, electrodes, and connecting plates. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the bending device in the embodiment of this utility model. Figure 1 .

[0020] Figure 2 This is a schematic diagram of the overall structure of the bending device in the embodiment of this utility model. Figure 2 .

[0021] Figure 3 This is a schematic diagram of the bending limiting mechanism in an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the linkage bending mechanism in an embodiment of the present utility model. Figure 1 .

[0023] Figure 5 This is a schematic diagram of the linkage bending mechanism in an embodiment of the present utility model. Figure 2 .

[0024] Figure 6 This is a schematic diagram of the structure of the stepped linkage block in an embodiment of this utility model.

[0025] Figure label: 100. Product limit mechanism; 110. Product limit component; 120. Limit adjustment component; 200. Bending limit mechanism; 210. Limit mechanism mounting bracket; 220. Angle-adjustable limit assembly; 221. Second limit unit; 222. Angle-adjustable drive unit; 300. Linked bending mechanism; 310. Limiting component; 311. Limiting component mounting bracket; 312. First limiting unit; 3121. Unit linkage block; 3122. Pressing limiting block; 3123. Limiting drive roller assembly; 320. Bending assembly; 321. Bending block; 322. Bending linkage unit; 3221. Bending linkage unit mounting plate; 3222. Bending drive roller assembly; 330. Linked bending drive assembly; 331. Stepped linkage block; 3311. Stepped linkage block body; 3312. First step section; 3313. Second step section; 3314. Inclined platform section; 332. Linked guide unit; 333. Bending drive unit; 400. Product loading and unloading mechanism. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of this utility model.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] Example 1: Please see the appendix Figure 1 , 2 4. The bending device of this utility model embodiment includes a product limiting mechanism 100, and a bending limiting mechanism 200 and a linkage bending mechanism 300 disposed adjacent to the product limiting mechanism 100; wherein, the linkage bending mechanism 300 includes a limiting component 310 for pressing and limiting the first surface of the product adjacent to the part to be bent; a bending component 320 slidably disposed on the limiting component 310 for bending the part of the product to be bent; and a linkage bending drive component 330 that rolls and abuts against the limiting component 310 and the bending component 320. The linkage bending drive component 330 is used to drive the limiting component 310 to press and limit the first surface of the product adjacent to the part to be bent, and to drive the bending component 320 to bend the part of the product to be bent.

[0029] Furthermore, in some embodiments, the bending device also includes a product loading and unloading mechanism 400 disposed adjacent to the product limiting mechanism 100 for realizing product loading and unloading; preferably, the product loading and unloading mechanism 400 can be a robot or a track conveying mechanism in the prior art, and can be selected and designed according to actual production needs, as long as it can realize the loading of the battery product to be bent and the unloading of the battery product after bending.

[0030] Please see the appendix Figure 2 In some embodiments, the bending limiting mechanism 200 includes a limiting mechanism mounting frame 210 for overall installation and limiting of the mechanism; and an angle-adjustable limiting component 220 disposed on the limiting mechanism mounting frame 210 for pressing and limiting the second side of the product adjacent to the part to be bent; wherein the first side and the second side are two opposite sides of the product adjacent to the part to be bent. Preferably, the angle-adjustable limiting component 220 is disposed on one side of the limiting mechanism mounting frame 210, or symmetrically disposed on both sides of the limiting mechanism mounting frame 210; it can be selected and designed according to actual processing needs. Specifically, when bending a single or single-row battery product, the angle-adjustable limiting component 220 can be disposed on one side of the limiting mechanism mounting frame 210, while when bending two or two rows of battery products simultaneously is required, the angle-adjustable limiting component 220 can be symmetrically disposed on both sides of the limiting mechanism mounting frame 210.

[0031] Please refer to the appendix for further details. Figure 3 In some embodiments, the angle-adjustable limiting component 220 includes a second limiting unit 221 for pressing and limiting the second surface of the product adjacent to the part to be bent; and an angle-adjustable drive unit 222 connected to the second limiting unit 221 and oscillatingly mounted on the limiting mechanism mounting bracket 210. The angle-adjustable drive unit 222 is used to drive the second limiting unit 221 to press and limit the second surface of the product adjacent to the part to be bent. Preferably, the angle-adjustable drive unit 222 is a motor drive unit or a telescopic cylinder drive unit, and its oscillation angle in the vertical direction is 15°-60°. This not only allows the second limiting unit 221 connected to it to tilt and press and limit the second surface of the product adjacent to the part to be bent, reducing interference with the movement of the bending component 320, but also prevents a large driving capacity requirement due to the large tilt angle. Furthermore, the second limiting unit 221 is an elastic limiting unit, which can effectively buffer the instantaneous stress applied to the product by the second limiting unit 221, and prevent the product from being damaged due to excessive stress.

[0032] Please see the appendix Figure 2In some embodiments, the product limiting mechanism 100 includes a product limiting component 110 for placing and limiting the product; and a limiting adjustment component 120 connected to the product limiting component 110 for driving the product limiting component 110 to move, thereby adjusting the product placement position. Preferably, the product limiting component 110 can be a battery clamp from the prior art, and the limiting adjustment component 120 can be a motor lead screw adjustment component or a cylinder slide rail adjustment component from the prior art, which can be selected and designed according to actual needs.

[0033] The bending device in this embodiment utilizes a combination of a bending limiting mechanism 200 and a linkage bending mechanism 300 to clamp and limit the portion of the product to be bent adjacent to it, as well as to bend the portion of the product to be bent. Furthermore, the limiting component 310 and the bending component 320 in the linkage bending mechanism 300 are driven by the same linkage bending drive component 330. Compared with the bending devices in the prior art that each has its own independent driving structure, this not only effectively reduces the overall size of the bending device, thereby reducing the space required for battery production, but also effectively reduces the overall cost of the bending device, thereby achieving cost reduction and efficiency improvement management in battery production.

[0034] Example 2: Please see the appendix Figure 1-4 The bending device in this embodiment is the same as that in Embodiment 1, both including a product limiting mechanism 100, and a bending limiting mechanism 200 and a linkage bending mechanism 300 disposed adjacent to the product limiting mechanism 100; wherein, the linkage bending mechanism 300 includes a limiting component 310 for pressing and limiting the first surface of the product adjacent to the part to be bent; a bending component 320 slidably disposed on the limiting component 310 for bending the part of the product to be bent; and a linkage bending drive component 330 that rolls and abuts against the limiting component 310 and the bending component 320. The linkage bending drive component 330 is used to drive the limiting component 310 to press and limit the first surface of the product adjacent to the part to be bent, and to drive the bending component 320 to bend the part of the product to be bent. The main difference is: Please refer to the appendix for further details. Figure 5The linkage bending drive assembly 330 includes a stepped linkage block 331 for jointly driving the limiting assembly 310 and the bending assembly 320; a linkage guide unit 332 disposed at the bottom of the stepped linkage block 331 for guiding the movement of the stepped linkage block 331; and a bending drive unit 333 whose drive end is connected to the stepped linkage block 331 for driving the stepped linkage block 331 to reciprocate along the linkage guide unit 332, thereby adjusting the position of the limiting assembly 310 and the bending assembly 320. Preferably, the stepped linkage block 331 is provided with a first stepped portion 3312 that rolls against the limiting assembly 310 and a second stepped portion 3313 that rolls against the bending assembly 320, as shown in the attached figure. Figure 6 As shown, the movement of the stepped linkage block 331 can simultaneously drive the movement of the limiting component 310 and the bending component 320 that roll against it, achieving the purpose of joint driving. Compared with the bending device with its own independent driving structure in the prior art, it can not only effectively reduce the overall volume of the bending device to reduce the space occupied by battery production, but also effectively reduce the overall cost of the bending device to achieve cost reduction and efficiency improvement management in battery production.

[0035] Furthermore, the linkage guide unit 332 is a guide rail unit, and the bending drive unit 333 is a motor drive unit or a cylinder telescopic cylinder drive unit, which can be selected and designed according to actual needs.

[0036] Please refer to the appendix for further details. Figure 6 In some embodiments, the stepped linkage block 331 includes a stepped linkage block body 3311; a first step portion 3312 disposed at a first height of the stepped linkage block body 3311 for rolling contact with the limiting component 310 under the driving action of the bending drive unit 333; a second step portion 3313 disposed at a second height of the stepped linkage block body 3311 for rolling contact with the bending component 320 under the driving action of the bending drive unit 333; and a ramp portion 3314 disposed on the side of the stepped linkage block body 3311 away from the bending drive unit 333 for guiding and buffering the movement of the limiting component 310 and the bending component 320; and the first height is smaller than the second height, and the width of the first step portion 3312 is larger than the width of the second step portion 3313.

[0037] When the stepped linkage block 331 moves towards the product limiting mechanism 100 along the linkage guide unit 332 under the driving action of the bending drive unit 333, the inclined platform 3314 will first abut against the limiting component 310 and the bending component 320; subsequently, when the bending drive unit 333 continues to drive the stepped linkage block 331 towards the product limiting mechanism 100, the limiting component 310 and the bending component 320, which are rolling against it at the bottom, can climb up along the inclined surface of the inclined platform 3314; until the limiting component 310 moves to the first step 3314. When the product is on step 312, the lifting limiting component 310 can press against the first surface of the product adjacent to the part to be bent, limiting the first surface of the product adjacent to the part to be bent; then, the bending drive unit 333 continues to drive the step linkage block 331 to move towards the product limiting mechanism 100 until the bending component 320 moves to the second step 3313, the bending component 320 can continue to move to a position higher than the top of the limiting component 310, so as to push the part to be bent to a height higher than the first surface of the product adjacent to the part to be bent, and bend the product.

[0038] Example 3: Please see the appendix Figure 1-6 The bending device in this embodiment of the present invention is the same as that in Embodiment 1 or 2, including a product limiting mechanism 100, and a bending limiting mechanism 200 and a linkage bending mechanism 300 disposed adjacent to the product limiting mechanism 100; wherein, the linkage bending mechanism 300 includes a limiting component 310 for pressing and limiting the first surface of the product adjacent to the part to be bent; a bending component 320 slidably disposed on the limiting component 310 for bending the part of the product to be bent; and a linkage bending drive component 330 that rolls and abuts against the limiting component 310 and the bending component 320. The linkage bending drive component 330 is used to drive the limiting component 310 to press and limit the first surface of the product adjacent to the part to be bent, and to drive the bending component 320 to bend the part of the product to be bent. The main difference is: Please see the appendix Figure 4 and 5 The limiting component 310 includes a limiting component mounting bracket 311 for overall support and limiting of the component; and a first limiting unit 312 that is rolled and slidably disposed on the limiting component mounting bracket 311 in contact with the linkage bending drive component 330. The first limiting unit 312 is used to press and limit the first surface of the product adjacent to the part to be bent under the driving action of the linkage bending drive component 330.

[0039] Furthermore, in some embodiments, the first limiting unit 312 includes a unit linkage block 3121 slidably disposed in the vertical direction of the limiting component mounting frame 311, a pressing limiting block 3122 disposed on the top of the unit linkage block 3121 for pressing and limiting the first surface of the product adjacent to the part to be bent, and a limiting drive roller assembly 3123 disposed at the bottom of the unit linkage block 3121 for rolling contact with the stepped linkage block 331. When the limiting drive roller assembly 3123 rolls along the stepped linkage block 331, it can drive the unit linkage block 3121 to move in the vertical direction of the limiting component mounting frame 311, thereby driving the pressing limiting block 3122 disposed on the top of the unit linkage block 3121 to move, so as to press and limit the first surface of the product adjacent to the part to be bent.

[0040] Please see the appendix Figure 4 and 5 The bending assembly 320 includes a bending block 321 for bending the part of the product to be bent; and a bending linkage unit 322 connected to the bending block 321 and slidably disposed on the limiting assembly 310. The bending linkage unit 322 is used to bend the part of the product to be bent under the driving action of the linkage bending drive assembly 330.

[0041] Furthermore, in some embodiments, the bending linkage unit 322 includes a bending linkage unit mounting plate 3221 slidably disposed on the unit linkage block 3121 of the limiting component 310, and a bending drive roller assembly 3222 disposed at the bottom of the bending linkage unit mounting plate 3221 for rolling contact with the stepped linkage block 331. When the bending drive roller assembly 3222 rolls along the stepped linkage block 331, it can drive the bending linkage unit mounting plate 3221 to move in the vertical direction of the unit linkage block 3121, thereby driving the bending block 321 disposed at the top of the bending linkage unit mounting plate 3221 to move, so as to bend the part of the product to be bent.

[0042] Furthermore, in some embodiments, the limiting component 310 and the bending component 320 may be disposed on the same side of the linkage bending drive component 330, or the components may be separately disposed on both sides of the linkage bending drive component 330. The selection and design can be made according to actual processing needs, specifically adapting to the layout of the angle-adjustable limiting component 220; that is, when bending a single battery product or a single row of battery products, the limiting component 310 and the bending component 320 can be disposed on one side of the linkage bending drive component 330, while when bending two or two rows of battery products simultaneously is required, the limiting component 310 and the bending component 320 can be symmetrically disposed on both sides of the linkage bending drive component 330.

[0043] The bending device in Examples 2-3, based on achieving the technical effect of Example 1, further designs the linkage bending mechanism 300. The linkage bending drive component 330 adjusts the position of the limiting component 310 and the bending component 320 by driving the stepped linkage block 331 to move and rolling against the limiting component 310 and the bending component 320. Compared with the linear drive method, the sliding and rolling combined drive method can effectively reduce the instantaneous impact force exerted on the product by the limiting component 310 and the bending component 320. Especially when bending thinner parts of the battery such as tabs, electrodes, and connecting plates, this drive method can prevent the tabs, electrodes, and connecting plates from being damaged due to excessive instantaneous impact force, thereby effectively ensuring the bending quality of the tabs, electrodes, and connecting plates.

[0044] As can be seen from the technical solutions of the above embodiments, this utility model provides a bending device that can not only effectively reduce the overall volume of the bending device to reduce the space required for battery production, but also effectively reduce the overall cost of the bending device, thereby achieving cost reduction and efficiency improvement management in battery production. At the same time, it can also effectively ensure the quality of bending and forming of tabs, electrode sheets, connecting plates, etc.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] 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., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0047] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0048] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0049] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A bending device, characterized in that, It includes a product limiting mechanism (100), and a bending limiting mechanism (200) and a linkage bending mechanism (300) disposed adjacent to the product limiting mechanism (100); wherein, the linkage bending mechanism (300) includes: The limiting component (310) is used to limit the pressure on the first surface of the product adjacent to the part to be bent; The bending component (320) is slidably disposed on the limiting component (310) to bend the part of the product to be bent. And a linkage bending drive component (330) that rolls against the limiting component (310) and the bending component (320) to drive the limiting component (310) to press and limit the first surface of the product adjacent to the part to be bent, and to drive the bending component (320) to bend the part of the product to be bent.

2. The bending device according to claim 1, characterized in that, The linkage bending drive assembly (330) includes: The stepped linkage block (331) is provided with a first stepped part (3312) that rolls against the limiting component (310) and a second stepped part (3313) that rolls against the bending component (320). A linkage guide unit (332) is disposed at the bottom of the stepped linkage block (331) to guide the movement of the stepped linkage block (331); And a bending drive unit (333), the drive end of which is connected to the stepped linkage block (331) to drive the stepped linkage block (331) to reciprocate along the linkage guide unit (332) so as to realize the position adjustment of the limiting component (310) and the bending component (320).

3. The bending device according to claim 2, characterized in that, The stepped linkage block (331) includes: Stepped linkage block body (3311); The first step (3312) is disposed at the first height of the step linkage block body (3311) and is used to roll against the limiting component (310) under the driving action of the bending drive unit (333). The second step (3313) is disposed at the second height of the step linkage block body (3311) and is used to roll against the bending assembly (320) under the driving action of the bending drive unit (333). And the inclined platform (3314) is provided on the side of the stepped linkage block body (3311) away from the bending drive unit (333) to guide and buffer the movement of the limiting component (310) and the bending component (320); Furthermore, the first height is less than the second height, and the width of the first step (3312) is greater than the width of the second step (3313).

4. The bending device according to claim 1, characterized in that, The limiting component (310) includes: Limit component mounting bracket (311); The first limiting unit (312) is rolled and slidably disposed on the limiting component mounting bracket (311) with the linkage bending drive component (330) to press and limit the first surface of the product adjacent to the part to be bent under the driving action of the linkage bending drive component (330).

5. The bending device according to claim 1, characterized in that, The bending assembly (320) includes: Bending block (321) is used to bend the part of the product to be bent; And a bending linkage unit (322), which is connected to the bending block (321) and slidably disposed on the limiting component (310), is used to bend the part of the product to be bent under the driving action of the linkage bending drive component (330).

6. The bending device according to claim 1, characterized in that, The limiting component (310) and the bending component (320) are disposed on one side of the linkage bending drive component (330), or are disposed in groups on both sides of the linkage bending drive component (330).

7. The bending device according to claim 1, characterized in that, The bending limiting mechanism (200) includes: Limiting mechanism mounting bracket (210); An angle-adjustable limiting component (220) is provided on the limiting mechanism mounting bracket (210) to press and limit the second side of the product adjacent to the part to be bent; The first side and the second side are two opposite sides of the product adjacent to the part to be bent.

8. The bending device according to claim 7, characterized in that, The angle-adjustable limiting component (220) includes: The second limiting unit (221) is used to press and limit the second side of the product adjacent to the part to be bent. And an angle-adjustable drive unit (222), the drive end of which is connected to the second limiting unit (221) and swings on the limiting mechanism mounting bracket (210) to drive the second limiting unit (221) to press and limit the second side of the product adjacent to the part to be bent.

9. The bending device according to claim 1, characterized in that, The product limiting mechanism (100) includes: Product limiting component (110) is used to realize the placement and limiting of the product; And a limit adjustment component (120), which is connected to the product limit component (110) to drive the product limit component (110) to move, so as to adjust the product placement position.

10. The bending device according to claim 1, characterized in that, Also includes: The product loading and unloading mechanism (400) is arranged adjacent to the product limiting mechanism (100) to realize the loading and unloading of products.

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