Storage battery ear folding device

Abstract

The utility model discloses a storage battery lug folding device which comprises a clamp for clamping a polar plate group and a lower pressing plate, a lower pressing groove and a positioning groove communicated with the lower pressing groove are formed in the bottom of the lower pressing plate, the lower pressing groove is located at the top of the positioning groove, guide plates are arranged on the two sides of the top in the lower pressing groove, and lug folding grooves are formed between the guide plates and the side wall of the lower pressing groove. And the lug folding groove is used for bending the lug on the outer side of the polar plate group in the clamp towards the interior of the polar plate group. Compared with the prior art, after the tabs of the plate group are bent by the tab bending device, the total length of the tabs of the plate group is shortened, so that the length of the busbar can be shortened when the busbar is formed by lead welding, the lead consumption is reduced, and the cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery busbar welding technical field, especially relates to a storage battery ear folding device. BACKGROUND

[0002] The pole ear usually adopts the form of multilayer metal foil, is connected with the connecting piece on the pole plate through ultrasonic welding, this kind of welding mode not only provides firm electrical connection, also has certain mechanical strength, can bear the physical stress of battery in the charging and discharging process, and ensures the stable transmission of current in the working process of battery, prevents the problems such as resistance increase or short circuit caused by poor contact.

[0003] In the battery production operation, multiple battery pole ears need to be accurately aligned and closely connected together through lead welding, firm welding is realized through heating and melting lead welding material, and finally the busbar structure with efficient current collection and distribution function is formed, therefore, the overall length of the busbar is closely related to the distribution of the pole ear, the pole ears on both sides of the existing pole plate group are in vertical state, and when welding the busbar, the length of the busbar needs to be longer than the distance between the pole ears on both sides of the pole plate group, leading to more lead use and cost increase. SUMMARY

[0004] The main purpose of the utility model is to provide a storage battery ear folding device, after the pole ear of the pole group is bent by the ear folding device, the total length of the multiple pole ears of the pole group is shortened, so that when lead welding forms the busbar, the length of the busbar can be reduced to reduce the amount of lead used and reduce the cost.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] A storage battery ear folding device, comprising a clamp for clamping a pole plate group and a pressing plate, a pressing groove and a positioning groove in communication with the pressing groove are formed in the bottom of the pressing plate, the pressing groove is located at the top of the positioning groove, guide plates are arranged at the top of the pressing groove on both sides, a ear folding groove is formed between the guide plates and the side wall of the pressing groove, and the ear folding groove is used to bend the pole ear on the outside of the pole plate group in the pole plate group.

[0007] Further, the side wall of the guide plate in the ear folding groove is provided with a first inclined surface and a second inclined surface, the inner bottom of the ear folding groove opposite to the guide plate is provided with a third inclined surface, the second inclined surface is located at the bottom of the first inclined surface, and the second inclined surface and the first inclined surface are inclined downward and away from the third inclined surface, and the third inclined surface is inclined downward and away from the second inclined surface.

[0008] Further, the side stop plates on the opposite sides of the clamp are inserted into the positioning groove and contact the top of the positioning groove.

[0009] Further, the side baffle is in contact with the limiting arm of the pressing plate, and the opposite sides of the two groups of limiting arms are provided with guide inclined surfaces.

[0010] Further, the clamp is a rectangular body and the opening faces upward.

[0011] Further, the inclination angle of the first inclined surface is 3-6 degrees.

[0012] Further, the inclination angle of the second inclined surface is 10-15 degrees.

[0013] Further, the inclination angle of the third inclined surface is 25-60 degrees.

[0014] Further, the top of the pressing plate is provided with a plurality of groups of threaded holes.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] After the tab group is bent by the tab bender, the total length of the plurality of tabs of the tab group is shortened, so that the length of the busbar can be reduced when the busbar is formed by lead welding, thereby reducing the amount of lead and reducing the cost.

[0017] The side baffle of the clamp is inserted into the positioning groove and in contact with the top of the positioning groove, so that the descending height of the pressing plate can be positioned, and the pressing plate is prevented from pressing the tab too much.

[0018] During the descending process of the pressing plate, the side baffle is in contact with the limiting arm of the pressing plate, so that the pressing plate can be prevented from deviating relative to the tab group in the clamp.

[0019] The guide inclined surface is arranged on the two groups of limiting arms, so that the side baffle can be inserted into the positioning groove. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure schematic view of the tab bender for the storage battery.

[0021] Figure 2 It is a pressing plate structure schematic view of the tab bender for the storage battery.

[0022] Figure 3 It is a clamp section view schematic view of the tab bender for the storage battery.

[0023] Figure 4 It is a tab and busbar welding structure schematic view after the tab operation.

[0024] In the figure: 1, clamp; 101, side baffle; 2, lower pressing plate; 201, lower pressing groove; 202, guide plate; 203, ear folding groove; 204, third inclined surface; 205, second inclined surface; 206, limiting arm; 207, guide inclined surface; 208, threaded hole; 209, positioning groove; 2010, first inclined surface. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0026] As Figures 1-4 shown, a battery ear folder includes a clamp 1 for clamping a group of pole plates and a lower pressing plate 2, the lower pressing plate 2 is provided with a lower pressing groove 201 and a positioning groove 209 communicated with the lower pressing groove 201 at the bottom, the lower pressing groove 201 is located at the top of the positioning groove 209, the guide plates 202 are arranged at the top of the lower pressing groove 201 on both sides, the ear folding groove 203 is formed between the guide plates 202 and the side wall of the lower pressing groove 201, and the ear folding groove 203 is used for bending the outer side of the pole plate group in the clamp 1 to the inside of the group of pole plates.

[0027] In the embodiment, as Figure 2 shown, the side wall of the guide plate 202 located in the ear folding groove 203 is provided with a first inclined surface 2010 and a second inclined surface 205, the third inclined surface 204 is arranged at the inner side bottom of the ear folding groove 203 opposite to the guide plate 202, the second inclined surface 205 is located at the bottom of the first inclined surface 2010, and the second inclined surface 205 and the first inclined surface 2010 are downward inclined and away from the third inclined surface 204, and the third inclined surface 204 is downward inclined and away from the second inclined surface 205.

[0028] Specifically, as Figure 1 shown, the group of pole plates is put into the clamp 1, the clamp 1 is used for positioning the pole ears on both sides of the group of pole plates, then the lifting mechanism is used for controlling the vertical downward movement of the lower pressing plate 2, in this process, with the downward movement of the lower pressing plate 2, the first pole ear 301 at the outermost side of the group of pole plates will contact the third inclined surface 204, so that the first pole ear 301 is inclined into the ear folding groove 203 under the action of the third inclined surface 204, at the same time, the second pole ear 302 adjacent to the first pole ear 301 will contact the second inclined surface 205, so that the second pole ear 302 is inclined into the ear folding groove 203 under the action of the second inclined surface 205, and then the first pole ear 301 and the second pole ear 302 contact each other in the ear folding groove 203, so that the second pole ear 302 can abut against the first pole ear 301, avoiding the upper end of the first pole ear 301 being too inclined, resulting in that the height of the first pole ear 301 is obviously lower than those of other pole ears 3.

[0029] As Figure 4As shown, after the tabs of the electrode group are bent by this folding device, the total length of the multiple tabs of the electrode group is shortened, so that when the busbar 4 is formed by lead soldering, the length of the busbar 4 can be reduced, thereby reducing the amount of lead used and lowering the cost.

[0030] Among them, such as Figure 1 and Figure 3 As shown, the tops of the side baffles 101 on both sides of the clamp 1 are inserted into the positioning grooves 209 and contact the top of the positioning grooves 209, thereby positioning the descent height of the lower pressure plate 2 and preventing the lower pressure plate 2 from pressing the electrode tab 3 too low. Furthermore, during the descent of the lower pressure plate 2, the side baffles 101 contact the limiting arms 206 of the lower pressure plate 2, thus preventing the lower pressure plate 2 from deviating from the electrode plate group in the clamp 1. The two sets of limiting arms 206 are provided with guide slopes 207 on their opposite sides to facilitate the insertion of the side baffles 101 into the positioning grooves 209.

[0031] Among them, such as Figure 3 As shown, clamp 1 is a rectangular body with an upward opening, which facilitates the handling of electrode plates by personnel.

[0032] The first inclined surface 2010 has an inclination angle of 3 to 6 degrees, and the second inclined surface 205 has an inclination angle of 10 to 15 degrees. The inclination angles of the first inclined surface 2010 and the second inclined surface 205 are relatively small. Therefore, when the pressing plate 2 stops pressing down on the second electrode 302, the second electrode 302 will rebound at a certain angle, thereby ensuring that the second electrode 302 is roughly in a vertically upward state. The inclination angle of the third inclined surface 204 is 25 to 60 degrees, which makes the first electrode 302 tilt significantly into the electrode plate group.

[0033] Among them, such as Figure 1 As shown, the top of the lower pressure plate 2 is provided with several sets of threaded holes 208, through which the lower pressure plate 2 can be connected to the lifting mechanism.

[0034] The working principle is that first, the lower pressing plate 2 is connected with a lifting device, for example, a pneumatic cylinder, then the clamp 1 is fixed directly below the lower pressing plate 2, next, the pole group is placed in the clamp 1, the clamp 1 is used to position the pole lugs on both sides of the pole group, then the lifting device is used to control the vertical downward movement of the lower pressing plate 2, in the process, as the lower pressing plate 2 descends, the first pole lug 301 on the outermost side of the pole group contacts the third inclined surface 204, so that the first pole lug 301 is inclined into the lug folding groove 203 under the action of the third inclined surface 204, at the same time, the second pole lug 302 adjacent to the first pole lug 301 contacts the second inclined surface 205, so that the second pole lug 302 is inclined into the lug folding groove 203 under the action of the second inclined surface 205, and then the first pole lug 301 and the second pole lug 302 contact each other in the lug folding groove 203, so that the second pole lug 302 can abut against the first pole lug 301, and the upper end of the first pole lug 301 is prevented from being excessively inclined, so that the height of the first pole lug 301 is obviously lower than those of other pole lugs 3.

[0035] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model, under the premise of not departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed for protection. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A battery ear folder comprising a clamp (1) holding a group of plates and a presser plate (2), characterized in that: The bottom of the lower pressing plate (2) is provided with a lower pressing groove (201) and a positioning groove (209) in communication with the lower pressing groove (201), the lower pressing groove (201) is located at the top of the positioning groove (209), the inner top of the lower pressing groove (201) is provided with a guide plate (202) on both sides, the guide plate (202) and the side wall of the lower pressing groove (201) form an ear folding groove (203), and the ear folding groove (203) is used for bending the outer side of the grommet of the polar plate group in the clamp (1) to the inner side of the polar plate group.

2. A battery ear folder as defined in claim 1 wherein: The side wall of the guide plate (202) located in the ear folding groove (203) is provided with a first inclined surface (2010) and a second inclined surface (205), the inner bottom of the ear folding groove (203) opposite to the guide plate (202) is provided with a third inclined surface (204), the second inclined surface (205) is located at the bottom of the first inclined surface (2010), the second inclined surface (205) and the first inclined surface (2010) are inclined downward and away from the third inclined surface (204), and the third inclined surface (204) is inclined downward and away from the second inclined surface (205).

3. A battery ear folder as defined in claim 2 wherein: The top of the side baffle (101) opposite to the clamp (1) is inserted into the positioning groove (209) and in contact with the top of the positioning groove (209).

4. A battery ear folder as defined in claim 3 wherein: The side baffle (101) is in contact with the limiting arm (206) of the lower pressing plate (2), and the opposite side of the two groups of limiting arms (206) is provided with a guide inclined surface (207).

5. The battery ear folder of claim 1 wherein: The clamp (1) is a rectangular body and is open upward.

6. The battery ear folder of claim 2 wherein: The inclination angle of the first inclined surface (2010) is 3-6 degrees.

7. The battery ear folder of claim 2 wherein: The inclination angle of the second inclined surface (205) is 10-15 degrees.

8. The battery ear folder of claim 2 wherein: The inclination angle of the third inclined surface (204) is 25-60 degrees.

9. The battery ear folder of claim 1 wherein: The top of the lower pressing plate (2) is provided with a plurality of groups of threaded holes (208).

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