Device for welding pole piece and pole lug

Abstract

The utility model relates to the technical field of battery processing, in particular to a pole piece and tab welding device which comprises welding equipment. One side of the welding equipment is provided with a welding head for welding a tab and a pole piece, a pole piece placing frame is arranged below the welding head, and one side of the pole piece placing frame is provided with a tab placing frame fixedly connected with the welding equipment; a moving mechanism is fixedly connected to the interior of the pole piece placing frame, and a welding frame is fixedly connected to one side of the placing plate; the inner side of the pole piece placing frame is also fixedly connected with a negative pressure mechanism; a battery pack and a pole piece are placed above the placing plate in the pole piece placing frame, the pole piece is placed above the welding frame, the air pump is started, air enters the negative pressure frame through the air pipe at the moment and then is exhausted, the air suction frame can be used for adsorbing the bottom of the pole piece, it can be ensured that the pole piece is stably attached to the welding frame, and the welding efficiency is improved. The pole piece is arranged in a flat mode, when the pole lug is placed, the pole lug can be stably attached to the pole piece, and the welding quality of a follow-up welding head is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery processing technical field, concretely is a kind of device of tab and tab welding. BACKGROUND

[0002] When the tab of battery is welded, with the development of society, it generally adopts ultrasonic wave mode to weld, and the battery pack and tab are placed in the groove on the placing table by artificial during welding, which plays the positioning purpose, at this time, the tab of battery pack is protrudingly arranged, and the tab is placed above the tab, and the tab is also located in the groove, which plays the accurate positioning, and then extrusion welding is carried out by welding head, in actual use process, the tab of battery pack is not flat sometimes, cannot stably and closely contact with the lower supporting plate, when the tab is placed, there is a large gap between the contact surface, or misplacement, during welding, false welding technical problem is prone to occur, and the yield of battery pack is reduced, therefore, aiming at the above problems, a kind of device of tab and tab welding is provided. SUMMARY

[0003] The utility model aims at providing a kind of device of tab and tab welding, to solve the problems presented in the above background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of device of tab and tab welding, including welding equipment, welding head and tab placement frame;

[0005] The welding head for tab tab welding is installed on the side of the welding equipment, the tab placement frame is provided below the welding head, and the tab placement frame is provided with a tab placement frame in fixed connection with the welding equipment on one side;

[0006] The inside of the tab placement frame is fixedly connected with a moving mechanism, the top of the moving mechanism is fixedly connected with a placing plate, and the placing plate is fixedly connected with a welding frame on one side;

[0007] The inside of the tab placement frame is also fixedly connected with a negative pressure mechanism;

[0008] The negative pressure mechanism includes a negative pressure frame, an air pump and an air pipe, the tab placement frame is fixedly connected to the outside of the negative pressure frame, the air pump is fixedly connected to the inside of the negative pressure frame, the air pipe is fixedly connected to the top of the air pump and the other end of the air pipe is communicated with a suction frame, and the suction frame is fixedly connected to the welding frame outside.

[0009] Further, the outside of the placing plate is slidably connected with the tab placement frame, and the outside of the welding frame is slidably connected with the tab placement frame.

[0010] Further, the air suction frame is arranged in Y shape, and the inside of the air suction frame is hollow.

[0011] Further, the air pipe is made of rubber pipe material.

[0012] When the tab of the battery is welded, with the development of society, it is generally welded by ultrasonic wave, and when welding, the battery pack and the pole piece are placed in the groove on the placing table by artificial positioning, at this time, the pole piece of the battery pack is arranged protrudingly, and the tab is placed above the pole piece, and the tab is also located in the groove, which plays a precise positioning role, and then the welding head is extruded and welded, in the actual use process, the pole piece of the battery pack is not flat, and cannot be stably and closely contacted with the lower supporting plate, when the tab is placed, there is a large gap or misalignment between the contact surfaces, and when welding, the virtual welding technical problem is prone to occur, which reduces the yield of the battery pack, when the device is used, the battery pack and the pole piece are placed above the placing plate in the pole piece placing frame, at this time, the pole piece is placed above the welding frame, the air pump is started, air enters into the negative pressure frame through the air pipe, and then is discharged, at this time, the air suction frame can be used for adsorbing the bottom of the pole piece, at this time, the stable adhesion of the pole piece to the welding frame can be ensured, the pole piece is arranged flatly, and when the tab is placed, the tab can be stably adhered to the pole piece, so that the welding quality of the subsequent welding head is ensured.

[0013] Further, the moving mechanism comprises a mounting frame, a motor and a threaded shaft, the outer side of the mounting frame is fixedly connected with the pole piece placing frame, the inside of the mounting frame is fixedly connected with the motor, the main shaft tail end of the motor is fixedly connected with the threaded shaft, the outer side of the threaded shaft is spirally connected with a threaded sleeve, and the top of the threaded sleeve is fixedly connected with the placing plate.

[0014] Further, the top of the placing plate is fixedly connected with symmetrically distributed pressure sensors.

[0015] When the welding is completed, the motor is started to drive the threaded shaft to rotate, the threaded shaft drives the threaded sleeve to move, the threaded sleeve drives the placing plate above to move, the placing plate drives the battery pack after welding to move upwards, the battery pack is conveniently taken out, automatic discharging work is realized, and the pressure sensors arranged can detect whether there is a battery pack above the placing plate, once there is a product, the welding head can be started to work at this time.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model discloses a placing plate is arranged on the top of the pole piece placing frame, and the battery pack and the pole piece are placed on the placing plate, and the pole piece is placed on the top of the welding frame, and the air pump is started, and the air is entered into the negative pressure frame through the air pipe, and then is discharged, and the suction frame can be used for adsorbing the bottom of the pole piece, and the pole piece can be ensured to be stable and to be attached to the welding frame, and the pole piece is flat, and when the tab is placed, the tab can be stable and attached to the pole piece, and the welding quality of the subsequent welding head is ensured.

[0018] When the welding is completed, the motor is started to drive the threaded shaft to rotate, the threaded shaft drives the threaded sleeve to move, the threaded sleeve drives the placing plate above to move, the placing plate drives the battery pack after welding to move upwards, the battery pack is conveniently taken out, automatic unloading work is realized, and the pressure sensor can detect whether there is a battery pack above the placing plate, and once there is a product, the welding head can start work. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the whole structure schematic view of the utility model;

[0020] Figure 2 It is the pole piece placing frame's sectional view of the utility model;

[0021] Figure 3 It is the mobile mechanism structure schematic view of the utility model;

[0022] Figure 4 It is the negative pressure mechanism's structure schematic view of the utility model;

[0023] Figure 5 It is the suction frame's structure schematic view of the utility model.

[0024] In the drawing: 1, welding equipment;2, welding head;3, pole piece placing frame;4, tab placing frame;5, mobile mechanism;501, mounting frame;502, motor;503, threaded shaft;504, threaded sleeve;6, placing plate;7, pressure sensor;8, negative pressure mechanism;801, negative pressure frame;802, air pump;803, air pipe;804, suction frame;9, welding frame. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative work belong to the range of protection of the utility model.

[0026] Embodiment 1: please refer to Figure 1 、 Figure 2 ,Figure 4 And Figure 5 The utility model provides a technical scheme:

[0027] A kind of device for welding pole piece and tab, including welding equipment 1, welding head 2 and pole piece placing frame 3;

[0028] The welding head 2 for tab pole piece welding is installed on one side of the welding equipment 1, the pole piece placing frame 3 is arranged below the welding head 2, and the pole piece placing frame 3 is provided with the tab placing frame 4 in fixed connection with the welding equipment 1 on one side;

[0029] The inside of the pole piece placing frame 3 is fixedly connected with the moving mechanism 5, the top of the moving mechanism 5 is fixedly connected with the placing plate 6, and the placing plate 6 is fixedly connected with the welding frame 9 on one side;

[0030] The inside of the pole piece placing frame 3 is also fixedly connected with the negative pressure mechanism 8;

[0031] The negative pressure mechanism 8 includes negative pressure frame 801, air pump 802 and air pipe 803, the outside of the negative pressure frame 801 is fixedly connected with the pole piece placing frame 3, the inside of the negative pressure frame 801 is fixedly connected with the air pump 802, the top of the air pump 802 is provided with the air pipe 803 in fixed connection with the negative pressure frame 801, the other end of the air pipe 803 is communicated with the air suction frame 804, and the outside of the air suction frame 804 is fixedly connected with the welding frame 9.

[0032] The outside of the placing plate 6 is in sliding connection with the pole piece placing frame 3, and the outside of the welding frame 9 is in sliding connection with the tab placing frame 4.

[0033] The air suction frame 804 is Y-shaped, and the inside of the air suction frame 804 is hollow.

[0034] The air pipe 803 is made of rubber pipe material.

[0035] When the tab of the battery is welded, with the development of society, it is generally welded by ultrasonic wave. When welding, the battery pack and the pole piece are placed in the groove on the placing table by artificial, which plays the role of positioning. At this time, the pole piece of the battery pack is protrudingly arranged, and the tab is placed above the pole piece. The tab is also located in the groove, which plays the role of accurate positioning. Then the welding head is extruded and welded. In actual use process, the pole piece of the battery pack is not flatly arranged sometimes, and cannot be stably and closely contacted with the lower supporting plate. When the tab is placed, there is a large gap or misalignment between the contact surfaces, which can easily cause the technical problem of false welding during welding, and reduces the yield of the battery pack. The device is connected with power supply when in use, and the battery pack and the pole piece are placed above the placing plate 6 in the pole piece placing frame 3. At this time, the pole piece is placed above the welding frame 9. The air pump 802 is started. At this time, the air enters into the negative pressure frame 801 through the air pipe 803, and then is discharged. At this time, the air suction frame 804 can be used to adsorb the bottom of the pole piece. At this time, it can be ensured that the pole piece is stably and closely contacted with the welding frame 9. The pole piece is flatly arranged. When the tab is placed, the tab can be stably and closely contacted with the pole piece, and the welding quality of the subsequent welding head 2 is ensured.

[0036] In the embodiment, the air inlet end of the air suction frame 804 is located on the front and rear sides of the welding frame 9, which is used for air suction and fixing the pole piece. The air inlet end of the air suction frame 804 is misaligned with the position after the welding head 2 is pressed down. At this time, it will not affect the welding quality. The air pipe 803 is made of rubber pipe, which can be bent, so as to ensure that the welding frame 9 moves stably. The air inlet end of the air suction frame 804 is flush with the upper welding frame 9, which is used to ensure that the pole piece is stably adsorbed and fixed.

[0037] Embodiment 2: The embodiment is an improvement on embodiment 1. Please refer to Figure 3 , specifically, the above-mentioned moving mechanism 5 includes an installation frame 501, a motor 502 and a threaded shaft 503. The outer side of the installation frame 501 is fixedly connected with the pole piece placing frame 3. The inside of the installation frame 501 is fixedly connected with the motor 502. The main shaft end of the motor 502 is fixedly connected with the threaded shaft 503. The outer side of the threaded shaft 503 is spirally connected with a threaded sleeve 504. The top of the threaded sleeve 504 is fixedly connected with the placing plate 6.

[0038] The top of the placing plate 6 is fixedly connected with symmetrically distributed pressure sensors 7.

[0039] When the welding is completed, the motor 502 is started to drive the threaded shaft 503 to rotate, the threaded shaft 503 drives the threaded sleeve 504 to move, the threaded sleeve 504 drives the upper placement plate 6 to move, the placement plate 6 drives the battery pack after welding to move upwards, the battery pack is convenient to take out, automatic unloading work is realized, and the pressure sensor 7 arranged can detect whether there is the battery pack above the placement plate 6, once there is the product, the welding head 2 can only start to work, miswelding is avoided.

[0040] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0041] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for welding an electrode sheet to an electrode tab, characterized in that: Including welding equipment (1), welding head (2) and pole piece placement frame (3); One side of the welding equipment (1) is provided with a welding head (2) for welding the tab pole piece, the lower side of the welding head (2) is provided with a pole piece placement frame (3), and one side of the pole piece placement frame (3) is provided with a tab placement frame (4) in fixed connection with the welding equipment (1); The inside of the pole piece placement frame (3) is fixedly connected with a moving mechanism (5), the top of the moving mechanism (5) is fixedly connected with a placement plate (6), and one side of the placement plate (6) is fixedly connected with a welding frame (9); The inside of the pole piece placement frame (3) is also fixedly connected with a negative pressure mechanism (8); The negative pressure mechanism (8) comprises a negative pressure frame (801), an air pump (802) and an air pipe (803), the outside of the negative pressure frame (801) is fixedly connected with the pole piece placement frame (3), the inside of the negative pressure frame (801) is fixedly connected with the air pump (802), the top of the air pump (802) is provided with the air pipe (803) in fixed connection with the negative pressure frame (801), the other end of the air pipe (803) is communicated with an air suction frame (804), and the outside of the air suction frame (804) is fixedly connected with the welding frame (9).

2. The device for welding the pole piece and the tab according to claim 1, characterized in that: The outside of the placement plate (6) is in sliding connection with the pole piece placement frame (3), and the outside of the welding frame (9) is in sliding connection with the tab placement frame (4).

3. The device for welding the pole piece and the tab according to claim 1, characterized in that: The top of the placement plate (6) is fixedly connected with symmetrically distributed pressure sensors (7).

4. The device for welding the pole piece and the tab according to claim 1, characterized in that: The air suction frame (804) is Y-shaped, and the inside of the air suction frame (804) is hollow.

5. The device for welding the pole piece and the tab according to claim 1, characterized in that: The air pipe (803) is made of rubber pipe material.

6. The device for welding the pole piece and the tab according to claim 1, wherein: The moving mechanism (5) comprises a mounting frame (501), a motor (502) and a threaded shaft (503), the outside of the mounting frame (501) is fixedly connected with the pole piece placement frame (3), the inside of the mounting frame (501) is fixedly connected with the motor (502), the main shaft end of the motor (502) is fixedly connected with the threaded shaft (503), the outside of the threaded shaft (503) is spirally connected with a threaded sleeve (504), and the top of the threaded sleeve (504) is fixedly connected with the placement plate (6).

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