Pole lug correcting device

Abstract

The utility model discloses a pole lug correcting device which comprises a clamping mechanism which is in sliding connection with a base, comprises a first clamping plate and a second clamping plate which are oppositely arranged and is used for correcting a pole lug; and the pressing mechanism is connected with one of the first clamping plate and the second clamping plate and is used for flattening the corrected tabs. According to the utility model, the clamping mechanism is used for correcting the tabs of the battery cell, the tabs are clamped at proper positions, and the corrected tabs are flattened by the pressing mechanism, so that the situation that the battery cell is turned up and the subsequent shell entering process is influenced due to the fact that internal stress is generated when the warped tabs are corrected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to a tab correction device. Background Art

[0002] Lithium-ion batteries have the advantages of light weight and good safety performance, so they are widely used in mobile electronic devices such as Bluetooth headsets, mobile phones, laptops, tablets, cameras, and portable mobile power supplies.

[0003] Lithium-ion batteries consist of cells and tabs that connect the cells. During the manufacturing process, the tab alignment device can help adjust the position of the tabs so that they can be correctly aligned with the connector or slot during subsequent use to ensure normal connection of the circuit. This is crucial for battery production and manufacturing to ensure battery stability and charge and discharge performance.

[0004] However, the existing tab correcting device can only adjust the position of the tabs at both ends of the battery cell, but cannot improve the warping of the tabs themselves. For batteries with a large angle between the battery cell and the tabs, the tabs will bend and generate stress when the tab correcting device corrects the tabs, causing the battery cell to flip up, resulting in poor shell insertion and battery cell scrapping. Utility Model Content

[0005] The main purpose of the utility model is to provide a tab correction device, which aims to solve the problem that the battery core is easily turned up when correcting the tab, thus affecting the normal insertion into the shell.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a tab correction device, which comprises:

[0007] Base;

[0008] A clamping mechanism, slidably connected to the base, comprises a first clamping plate and a second clamping plate arranged opposite to each other, and is used for correcting the tab;

[0009] The pressing mechanism is connected to one of the first clamping plate and the second clamping plate, and is used for flattening the corrected pole lug.

[0010] In some embodiments, in the clamping mechanism, the second clamping plate is fixed in position, the first clamping plate can move in a horizontal direction relative to the second clamping plate, and the second clamping plate is provided with a vertical slide rail for connecting to the pressing mechanism.

[0011] In some embodiments, the pressing mechanism comprises:

[0012] A mounting plate, slidably connected to the vertical slide rail;

[0013] A pressure rod connected to the mounting plate and located between the first clamping plate and the second clamping plate;

[0014] A pad is provided between the first clamping plate and the second clamping plate, and the pad is used to support the tab.

[0015] In some embodiments, the pressing rod includes a pressing section and a connecting section which are perpendicular to each other, the pressing section is used to flatten the tab, and the connecting section is connected to the mounting plate.

[0016] In some embodiments, the connecting section is provided with a vertically arranged connecting groove for adjusting the height of the crimping section.

[0017] In some embodiments, a waist-shaped groove is constructed on the mounting plate, and the pressing mechanism further includes a slider, the mounting plate is detachably connected to the slider via the waist-shaped groove, and the slider is slidably connected to the vertical slide rail.

[0018] In some embodiments, the pressing mechanism further includes a driving member, which is disposed on the base, and one end of the driving member is in contact with the mounting plate for driving the mounting plate to reciprocate in a vertical direction.

[0019] In some embodiments, a horizontally arranged push rod is provided at the output end of the driving member; the pressing mechanism also includes a driven wheel, one side of which is connected to the mounting plate, the driven wheel can rotate relative to the mounting plate, and its surface abuts against the push rod.

[0020] In some embodiments, a spring is further included, one end of the spring is connected to the mounting plate, and the other end of the spring is connected to the push rod.

[0021] In some embodiments, a slide groove is provided on the base, and the clamping mechanism is slidably disposed in the slide groove.

[0022] The technical solution of the utility model uses a clamping mechanism to correct the pole ear of the battery cell, clamps the pole ear in a suitable position, and then flattens the corrected pole ear through a pressing mechanism, so as to avoid the warped pole ear from generating internal stress during correction, causing the battery cell to flip up and affecting the subsequent shelling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of an embodiment of the tab correction device of the utility model;

[0024] Figure 2 It is a structural schematic diagram of another embodiment of the tab correction device of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the clamping mechanism in the terminal lug correction device of the utility model;

[0026] Figure 4 It is a structural schematic diagram of the pressing mechanism in the tab correcting device of the utility model.

[0027] Reference numerals:

[0028] 100, base; 110, slide groove; 200, clamping mechanism; 300, pressing mechanism; 400, driving member; 210, first clamping plate; 220, second clamping plate; 221, vertical slide rail; 230, pad; 310, pressure rod; 311, crimping section; 312, connecting section; 3121, connecting groove; 320, mounting plate; 321, waist-shaped groove; 330, slider; 340, driven wheel; 410, push rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the scheme in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] 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.

[0031] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0032] In addition, the descriptions of "first", "second", etc. in the present utility model 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" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0033] The existing tab correction device only has the function of correcting the tab. For cells with large tab angles or tab included angles, the tabs will bend and generate stress when the correction clamps clamp the tabs, causing the main body of the cell to flip up, resulting in poor shell insertion and the cell being scrapped. If the cell angles and included angles are tightened, and the cells with bad angles are manually picked out and re-arranged for separate production, a large amount of human resources will be wasted.

[0034] Based on this, the utility model proposes a terminal ear correction device, referring to Figure 1-Figure 4 , the tab correction device comprises:

[0035] Base 100;

[0036] The clamping mechanism 200 is slidably connected to the base 100, and includes a first clamping plate 210 and a second clamping plate 220 arranged opposite to each other, and is used to correct the tab;

[0037] The pressing mechanism 300 is connected to one of the first clamping plate 210 and the second clamping plate 220 and is used to flatten the corrected tab.

[0038] In the embodiment of the present application, the base 100 is used to carry the clamping mechanism 200 and the pressing mechanism 300, and provide a stable support platform to ensure that the clamping mechanism 200 does not shake or move when adjusting the pole ear. Preferably, the bottom of the base 100 is provided with anti-slip spikes with adjustable height, which is convenient for installing the base 100 on various terrains. The clamping mechanism 200 and the pressing mechanism 300 can select the commonly used devices in the prior art, and the accuracy can be selected according to actual needs. It is understandable that the pressing mechanism 300 needs to be able to flatten the pole ear after the clamping mechanism 200 clamps the pole ear.

[0039] There are many solutions for the clamping mechanism 200. For example, the first clamping plate 210 can be fixed, and the second clamping plate 220 can move relative to the first clamping plate 210 to clamp and straighten the tab. Most of the solutions for implementing the clamping mechanism 200 are existing technologies and will not be described in detail here.

[0040] There are also many schemes for the pressing mechanism 300. For example, it can be set on the first clamping plate 210 or the second clamping plate 220 to flatten the corrected tabs by gravity or by applying a little pressure. When in use, the battery cell is placed in a suitable position by the loading robot so that the tabs on the battery cell can be clamped by the clamping mechanism 200; after the clamping mechanism 200 clamps the tabs, the pressing mechanism 300 presses down to flatten the tabs, eliminates the stress caused by the bending of the tabs, and ensures that the battery cell will not flip up. After that, the pressing mechanism rises, the clamping mechanism 200 opens, and then the battery cell shelling process can be completed.

[0041] Preferably, the surfaces of the clamping mechanism 200 and the pressing mechanism 300 are coated with polytetrafluoroethylene (PTFE), which has excellent non-adhesiveness and mechanical properties. While extending the service life of the clamping mechanism 200 and the pressing mechanism 300, it can also prevent falling debris from contaminating the pole ears, and also avoid scratching the pole ears when straightening the pole ears, thereby reducing the defective rate of the battery.

[0042] In this embodiment, the clamping mechanism 200 is used to correct the tabs on both sides of the battery cell to make them in the appropriate position, and then the corrected tabs are flattened by the pressing mechanism 300 to prevent the warped tabs from generating internal stress during correction, causing the battery cell to flip up and affecting the subsequent shelling process.

[0043] like Figure 1 and Figure 4 As shown, in some embodiments, the clamping mechanism 200 includes a first clamping plate 210 and a second clamping plate 220 that are arranged opposite to each other, and one of the first clamping plate 210 and the second clamping plate 220 is provided with a pad 230, and the pad 230 is used to support the tab.

[0044] When in use, after placing the battery cell in a suitable position, the tab is located on the pad 230. At this time, the first clamping plate 210 and the second clamping plate 220 arranged opposite to each other move toward each other to clamp the tab, and then the pressing mechanism 300 moves downward to flatten the tab through the cooperation between the pressing mechanism 300 and the pad 230 to eliminate the internal stress of the tab. Preferably, the size of the pad 230 is adjusted so that when the tab is flattened, the end of the tab is also located on the pad 230 to enhance the effect of eliminating the internal stress of the tab.

[0045] In this embodiment, there is no limitation on the shapes of the first clamping plate 210 and the second clamping plate 220, which can be just two flat plates arranged opposite to each other. Figure 1 As shown, in a preferred embodiment, the second clamping plate 220 is fixed in position, the first clamping plate 210 can move in the horizontal direction relative to the second clamping plate 220, and the second clamping plate 220 is provided with a vertical slide rail 221 for connecting the pressing mechanism 300. In this embodiment, the first clamping plate 210 and the second clamping plate 220 are composed of two mutually perpendicular horizontal plates, wherein the vertically placed larger horizontal plate (the second clamping plate 220) plays the role of installation and fixing, and the other smaller horizontal plate is used to clamp the pole ear, and the pad 230 is connected to the smaller horizontal plate. Preferably, the side of the horizontal plate can be set as an inclined surface to reduce the size of the product and save installation space.

[0046] like Figure 2 As shown, in some embodiments, one end of the pad 230 close to the first clamping plate 210 is configured as an inclined surface.

[0047] The pole lug is usually made of a thinner metal sheet. Since the first clamp 210 and the second clamp 220 move toward each other to clamp the pole lug, in order to ensure that the pole lug can be clamped, the first clamp 210 should be in close contact with the pad 230 constructed on the second clamp 220. However, due to errors in equipment manufacturing, the pad 230 set on the second clamp 220 may hinder the first clamp 210 from approaching the second clamp 220. Therefore, the end of the pad 230 close to the first clamp 210 is set as an inclined surface, and the first clamp 210 can move toward the second clamp 220 along the inclined surface, thereby ensuring that the pole lug can be clamped while reducing the difficulty of equipment processing.

[0048] like Figure 1-Figure 3 As shown, in some embodiments, the pressing mechanism 300 includes a pressing rod 310 and a mounting plate 320, wherein the mounting plate 320 is slidably connected to the vertical slide rail 221; the pressing rod 310 is connected to the mounting plate 320, and the pressing rod 310 is located between the first clamping plate 210 and the second clamping plate 220. The pad 230 is located between the first clamping plate 210 and the second clamping plate 220, and is used to carry the pole lug.

[0049] In this embodiment, the pressing rod 310 is used to flatten the tab, and the pressing rod 310 is slidably connected to the slide rail 221 provided on the second clamping plate 220 through the mounting plate 320, wherein the vertically arranged slide rail 221 can prevent the pressing rod 310 from deflecting when moving, so that the pressing rod 310 can accurately flatten the tab. There are many ways to connect the pressing rod 310 and the mounting plate 320, which can be a fixed connection, including bonding, riveting, etc., or a detachable connection, such as a threaded connection.

[0050] like Figure 3 As shown, in some embodiments, the pressure rod 310 includes a mutually perpendicular crimping section 311 and a connecting section 312, the crimping section 311 is used to flatten the pole ear, and the connecting section 312 is connected to the mounting plate 320. The structure of the pressure rod 310 is adjusted, wherein the connecting section 312 is parallel to the mounting plate 320, so as to facilitate the fixing of the pressure rod 310; the size of the crimping section 311 can be set as needed, and the width should generally not be greater than the pole ear to prevent the first clamping plate 210 and the second clamping plate 220 from clamping the pole ear. Preferably, the width of the crimping section 311 is equal to the width of the pole ear. The crimping section 311 equal to the width of the pole ear can better flatten the pole ear and eliminate its internal stress. Further, the connecting section 312 is provided with a vertically arranged connecting groove 3121 for adjusting the height of the connecting section 312. Considering that the sizes of the pole ears are different, in order to facilitate installation and adjustment, a vertical connecting groove 3121 is provided in the connecting section 312, and the connecting groove 3121 can be a waist-shaped groove to adjust the height of the connecting section 312.

[0051] like Figure 1 and Figure 3As shown, in some embodiments, a waist-shaped groove 321 is configured on the mounting plate 320, and the waist-shaped groove 321 can be horizontally arranged. The pressing mechanism 300 further includes a slider 330. The mounting plate 320 is detachably connected to the slider 330 through the waist-shaped groove 321, and the slide rail 221 is slidably connected to the mounting plate 320 through the slider 330. Since the waist-shaped groove 321 is horizontally arranged, the horizontal position of the pressing rod 310 between the first clamping plate 210 and the second clamping plate 220 can be adjusted.

[0052] The waist-shaped groove 321 and the slider 330 can be connected by a nut, so that the mounting plate 320 is firmly set on the slider 330. When the position of the mounting plate 320 needs to be adjusted, the nut is unscrewed, the mounting plate 320 is adjusted to a suitable position, and the nut is tightened. By setting the waist-shaped groove 321 on the mounting plate 320, it is convenient to adjust the position of the pressure rod 310 fixedly connected to the mounting plate 320, so as to improve the effect of flattening the pole ear and eliminating its internal stress.

[0053] like Figure 1 and Figure 2 As shown, in some embodiments, a driving member 400 is further included, and the driving member 400 is disposed on the base 100, and one end of the driving member 400 contacts the mounting plate 320, and is used to drive the pressing mechanism 300 to reciprocate in the vertical direction. The driving member 400 can be a motor, a cylinder or other common driving device, and this application does not limit this.

[0054] like Figure 1-Figure 3 As shown, in some embodiments, the output end of the driving member is provided with a horizontally arranged top rod 410, and the pressing mechanism 300 further includes a driven wheel 340, one side of which is connected to the mounting plate 320, and the driven wheel 340 can rotate relative to the mounting plate 320, and its surface abuts against the top rod 410. Specifically, the driven wheel 340 abuts against the moving end of the driving member 400. When in use, the moving end of the driving member 400 drives the top rod 410 to reciprocate in the vertical direction, and the driven wheel 340 also reciprocates in the vertical direction while rotating. By setting the driven wheel 340, the contact area between the pressing mechanism 300 and the top rod 410 is relatively small, and the rotation of the driven wheel 340 offsets the force generated when the driving member 400 drives the pressing mechanism 300, thereby preventing breakage and extending the service life. Further, the top rod 410 can be connected to the driving member 400 through a waist-shaped groove, so that its position relative to the driven wheel 340 can be adjusted.

[0055] In some embodiments, the pressing mechanism 300 may further include a spring, one end of which is connected to the mounting plate 320, and the other end of which is connected to the ejector rod 410. By providing the spring, the driving end of the driving member 400 pulls the spring when it descends, and the pressing mechanism 300 is also pulled by the spring and descends accordingly, thereby enhancing the controllability of the pressing mechanism 300 and preventing the pressing mechanism 300 from easily crushing the tab when it descends with gravity. Preferably, the spring is made of stainless steel to prevent it from rusting and affecting the normal use of the tab correction device.

[0056] like Figure 2 As shown, in some embodiments, the base 100 is provided with a slide groove 110, and the clamping mechanism 200 is slidably disposed in the slide groove 110. It can be understood that the clamping mechanism 200 is provided with a structure that matches the slide groove 110, so that the clamping mechanism 200 can move conveniently in the slide groove 110.

[0057] The above description is only a partial or preferred embodiment of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the overall concept of the present invention, or direct / indirect application in other related technical fields are included in the scope of protection of the present invention.

Claims

1. A tab correction device, characterized in that: include: Base; A clamping mechanism, slidably connected to the base, comprises a first clamping plate and a second clamping plate arranged opposite to each other, and is used for correcting the tab; The pressing mechanism is connected to one of the first clamping plate and the second clamping plate, and is used for flattening the corrected pole lug.

2. The tab correction device according to claim 1, characterized in that: In the clamping mechanism, the second clamping plate is fixed in position, the first clamping plate can move in a horizontal direction relative to the second clamping plate, and the second clamping plate is provided with a vertical slide rail for connecting to the pressing mechanism.

3. The tab correction device according to claim 2, characterized in that: The pressing mechanism comprises: A mounting plate, slidably connected to the vertical slide rail; A pressure rod connected to the mounting plate and located between the first clamping plate and the second clamping plate; A pad is provided between the first clamping plate and the second clamping plate, and the pad is used to support the tab.

4. The tab correction device according to claim 3, characterized in that: The pressing rod comprises a pressing section and a connecting section which are perpendicular to each other, the pressing section is used to flatten the pole ear, and the connecting section is connected to the mounting plate.

5. The tab correction device according to claim 4, characterized in that: The connecting section is provided with a vertically arranged connecting groove for adjusting the height of the crimping section.

6. The tab correction device according to claim 5, characterized in that: The mounting plate is configured with a waist-shaped groove, and the pressing mechanism further comprises a sliding block. The mounting plate is detachably connected to the sliding block via the waist-shaped groove, and the sliding block is slidably connected to the vertical slide rail.

7. The tab correction device according to claim 4, characterized in that: The pressing mechanism further comprises a driving member, which is arranged on the base. One end of the driving member contacts the mounting plate and is used to drive the mounting plate to reciprocate in a vertical direction.

8. The tab correction device according to claim 7, characterized in that: The output end of the driving member is provided with a horizontally arranged push rod; the pressing mechanism also includes a driven wheel, one side of which is connected to the mounting plate, the driven wheel can rotate relative to the mounting plate, and its surface abuts against the push rod.

9. The tab correction device according to claim 8, characterized in that: It also includes a spring, one end of which is connected to the mounting plate, and the other end of which is connected to the push rod.

10. The tab correction device according to any one of claims 1 to 9, characterized in that: The base is provided with a slide groove, and the clamping mechanism is slidably arranged in the slide groove.

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