阅读说明：本技术 一种锂电池极片焊接机 (Lithium battery pole piece welding machine ) 是由 陈万荣 孙华平 柏玉川 于 2018-09-17 设计创作，主要内容包括：本发明公开了一种锂电池极片焊接机,由电池本体上料机构、阳极振动输送机构、阳极上料机械手、阳极碰焊机、阳极焊接夹具、翻转输送机构、阴极片振动输送、阴极上料机械师、阴极碰焊机、阴极焊接夹具组成,电池本体上料机构完成对电池本体的上料操作,阳极振动输送机构与阳极上料机械手分别完成对电池阳极的输送上料操作,阳极碰焊机将阳极焊接夹具上的电池本体与电池阳极完成焊接操作,翻转输送机构将阳极焊接夹具焊接好的阳极一端翻转,使得电池本体阴极向上,阴极片振动输送与阴极上料机械师分别完成对阴极片的输送和上料操作,阴极碰焊机将阴极与电池本体焊接一起,完成对锂电池极片的自动焊接。(The invention discloses a lithium battery pole piece welding machine, which consists of a battery body feeding mechanism, an anode vibration conveying mechanism, an anode feeding mechanical arm, an anode butt-welding machine, an anode welding clamp, an overturning conveying mechanism, a cathode sheet vibration conveying mechanism, a cathode feeding mechanic, a cathode butt-welding machine and a cathode welding clamp, wherein the battery body feeding mechanism finishes the feeding operation of a battery body, the anode vibration conveying mechanism and the anode feeding mechanical arm respectively finish the feeding operation of a battery anode, the anode butt-welding machine finishes the welding operation of the battery body and the battery anode on the anode welding clamp, the overturning conveying mechanism overturns one end of the anode welded by the anode welding clamp to enable the cathode of the battery body to be upward, the cathode sheet vibration conveying mechanism and the cathode feeding mechanic respectively finish the conveying and feeding operation of a cathode sheet, and the cathode butt-welding machine welds the cathode and the battery body together, and finishing automatic welding of the lithium battery pole piece.)

1. A lithium battery pole piece welding machine comprises a battery body feeding mechanism (1), an anode vibration conveying mechanism (2), an anode feeding manipulator (3), an anode butt-welding machine (4), an anode welding fixture (5), a turnover conveying mechanism (6), a cathode vibration conveying mechanism (7), a cathode feeding mechanic (8), a cathode butt-welding machine (9) and a cathode welding fixture (10), wherein the battery body feeding mechanism (1) finishes feeding operation on a battery body (11-1), the anode welding fixture (5) is arranged between the battery body feeding mechanism (1) and the anode vibration conveying mechanism (2), the anode feeding manipulator (3) and the anode butt-welding machine (4), and the anode vibration conveying mechanism (2) and the anode feeding manipulator (3) finish conveying and feeding operation on a battery anode (11-2) respectively, an anode butt-welding machine (4) completes welding operation of a battery body (11-1) and a battery anode (11-2) on an anode welding fixture (5), a turnover conveying mechanism (6) is installed between the anode welding fixture (5) and a cathode welding fixture (10), the turnover conveying mechanism (6) turns over one end of the anode welded by the anode welding fixture (5), so that the cathode of the battery body (11-1) faces upwards, a cathode sheet vibration conveying mechanism (7) and a cathode feeding mechanic (8) are located on one side of the cathode welding fixture (10) to complete conveying and feeding operation of a cathode sheet respectively, and the cathode butt-welding machine (9) welds the cathode and the battery body (11-1) together to complete automatic welding of lithium battery sheets.

2. The lithium battery pole piece welding machine of claim 1, characterized in that: the battery body feeding mechanism (1) consists of a conveying belt (1-1), a front cover plate (1-2), a rear cover plate (1-3), a pushing cylinder (1-4) and a battery body pushing head (1-5); the battery body (11-1) is conveyed forwards sequentially through the conveying belt (1-1), enters a gap between the front cover plate (1-2) and the rear cover plate (1-3) through a channel on the rear cover plate (1-3), the pushing cylinder (1-4) is installed on the front cover plate (1-2) and the rear cover plate (1-3), an extending shaft of the pushing cylinder is located at the gap between the front cover plate (1-2) and the rear cover plate (1-3), the extending shaft of the pushing cylinder (1-4) is connected with the battery body pushing head (1-5), and the battery body pushing head (1-5) pushes the battery body (11-1) into the anode welding clamp (5) to finish the charging operation of the battery body.

3. The lithium battery pole piece welding machine of claim 1, characterized in that: the anode feeding mechanical arm (3) consists of an anode sheet carrier plate (3-1), a rotating disc (3-2) and a rotating motor (3-3); an anode sheet carrier plate (3-1) in the anode feeding mechanical arm (3) absorbs the anode sheets (11-2) conveyed by the anode vibration conveying mechanism (2), and the rotating motor (3-3) drives the rotating disc (3-2) to rotate, so that the anode sheets (11-2) are fed into the anode welding fixture (5), and the feeding operation of the anode sheets (11-2) is completed.

4. The lithium battery pole piece welding machine of claim 1, characterized in that: the anode welding fixture (5) consists of a fixed table (5-1), a battery guide groove (5-2), a fixture A plate (5-3), a fixture B plate (5-4), a clamping assembly (5-5), a supporting guide post (5-6), a sliding block (5-7), a connecting plate (5-8), a lifting plate (5-9), a jacking cylinder (5-10), a horizontal sliding group (5-11), a pushing cylinder (5-12), a pushing plate (5-13) and a suction column (5-14); wherein the fixed platform (5-1) is fixedly installed, the battery guide groove (5-2) is installed on the fixed platform (5-1), the battery body pushing head (1-5) pushes the battery body (11-1) to a position between the clamp A plate (5-3) and the clamp B plate (5-4) through the battery guide groove (5-2), the clamp A plate (5-3) and the clamp B plate (5-4) have a certain gap, the lower surface of the fixed platform (5-1) is supported by the supporting guide post (5-6), the slide block (5-7) is matched with the supporting guide post (5-6), the slide block (5-7) can slide on the supporting guide post (5-6), one surface of the connecting plate (5-8) is connected with the slide block (5-7), and the other surface is connected with the lifting plate (5-9), the jacking cylinder (5-10) is positioned below the lifting plate (5-9), an extension shaft of the jacking cylinder (5-10) is connected with the lifting plate (5-9), the horizontal sliding group (5-11) is arranged on the lifting plate (5-9), the pushing plate (5-13) is matched with the horizontal sliding group (5-11), the pushing plate (5-13) can slide along the horizontal sliding group (5-11), the extension shaft of the pushing cylinder (5-12) is connected with the pushing plate (5-13), the suction column (5-14) is arranged on the pushing plate (5-13), the suction column (5-14) is positioned between the clamp A plate (5-3) and the clamp B plate (5-4), the suction column (5-14) sucks the pool body (11-1), the clamping component (5-5) is arranged on one side of the clamp A plate (5-3), clamping a battery body (11-1) and a battery anode (11-2), welding the battery body (11-1) and the battery anode (11-2) together by an anode butt-welding machine (4), jacking a lifting plate (5-9) by a jacking cylinder (5-10) to jack a suction column (5-14) of a pushing plate (5-13), sucking the battery body (11-1) on the suction column (5-14), pushing the pushing plate (5-13) to move forwards by a pushing cylinder (5-12) to enable the unwelded body (11-1) and the battery anode (11-2) to reach the position of a clamping assembly (5-5), descending the lifting plate (5-9) by the jacking cylinder (5-10), and enabling the unwelded body (11-1) and the battery anode (11-2) to fall between a clamp A plate (5-3) and a clamp B plate (5-4), the clamping assembly (5-5) clamps to perform the next group of welding, the pushing cylinder (5-12) returns to return the suction column (5-14), and the automatic welding of the anode is completed in a circulating reciprocating mode.

5. The lithium battery pole piece welding machine of claim 1, characterized in that: the overturning and conveying mechanism (6) consists of a pushing and rotating cylinder (6-1), a batten (6-2), a rack (6-3), a rack guide groove (6-4), a gear (6-5), a rotating shaft (6-6), a bearing seat (6-7) and a clamping jaw cylinder (6-8); wherein an extension shaft of a push-turn cylinder (6-1) is connected with a slat (6-2), the slat (6-2) is connected with a rack (6-3), the rack (6-3) is arranged in a rack guide groove (6-4), the rack (6-3) can slide along the rack guide groove (6-4), a gear (6-5) is matched with the rack (6-3), the push-turn cylinder (6-1) pushes the rack (6-3) to move linearly so that the gear (6-5) makes rotary motion, the gear (6-5) is connected with a rotating shaft (6-6), two ends of the rotating shaft (6-6) are fixedly arranged through a bearing in a bearing seat (6-7), a clamping jaw cylinder (6-8) is arranged on the rotating shaft (6-6), and the clamping jaw cylinder (6-8) is driven to complete overturning operation through the rotation of the rotating shaft (6-6), the cathode of the battery body (11-1) can be automatically turned over by the turning and conveying mechanism (6), so that the welding operation of the cathode is facilitated.

Technical Field

The invention belongs to the field of lithium battery production, and particularly relates to a lithium battery pole piece welding machine.

Background

The battery is widely applied to various miniature electronic products due to small body size, and has the diameter of 4.8mm to 30mm and the thickness of 1.0mm to 7.7 mm; the back-up power supply is generally used for various electronic products, such as computer mainboards, electronic watches, electronic dictionaries, electronic scales, remote controllers, electric toys, cardiac pacemakers, electronic hearing aids, counters, cameras and the like. Button cells are also classified into two major types, chemical cells and physical cells, and the chemical cells are most commonly used. They consist of an anode (positive electrode), a cathode (negative electrode), and an electrolyte solution thereof. The surface of the electrolyte tank is made of stainless steel materials and serves as a positive electrode, a negative electrode of the electrolyte tank is a stainless steel circular cover, a sealing ring is arranged between the positive electrode and the negative electrode and is insulated, the sealing ring is made of nylon, and the sealing ring can play an insulating role and also can prevent electrolyte from leaking. Button cells are in a wide variety, and most of them are named after the materials used, such as silver oxide cells, lithium cells, alkaline manganese cells, and the like. A lithium battery pole piece welding machine is needed in the production process of a lithium battery, and mainly realizes the welding operation of a positive pole piece and a negative pole piece of the lithium battery, so that the welding of a battery body, a cathode piece and an anode piece can be automatically completed.

Disclosure of Invention

In order to meet the requirements, the invention provides a lithium battery pole piece welding machine which mainly realizes the welding operation of a lithium battery pole piece, so that the welding of a battery body, a cathode piece and an anode piece can be automatically completed, and the welding machine has the advantages of accuracy, reliability, capability of being matched with a lithium battery production operation line, and the like.

The invention provides a lithium battery pole piece welding machine which comprises a battery body feeding mechanism (1), an anode vibration conveying mechanism (2), an anode feeding mechanical arm (3), an anode butt-welding machine (4), an anode welding clamp (5), a turnover conveying mechanism (6), a cathode vibration conveying mechanism (7), a cathode feeding mechanic (8), a cathode butt-welding machine (9) and a cathode welding clamp (10), wherein the battery body feeding mechanism (1) finishes feeding operation on a battery body (11-1), the anode welding clamp (5) is arranged among the battery body feeding mechanism (1), the anode vibration conveying mechanism (2), the anode feeding mechanical arm (3) and the anode butt-welding machine (4), the anode vibration conveying mechanism (2) and the anode feeding mechanical arm (3) finish conveying and feeding operation on a battery anode (11-2) respectively, an anode butt-welding machine (4) completes welding operation of a battery body (11-1) and a battery anode (11-2) on an anode welding fixture (5), a turnover conveying mechanism (6) is installed between the anode welding fixture (5) and a cathode welding fixture (10), the turnover conveying mechanism (6) turns over one end of the anode welded by the anode welding fixture (5), so that the cathode of the battery body (11-1) faces upwards, a cathode sheet vibration conveying mechanism (7) and a cathode feeding mechanic (8) are located on one side of the cathode welding fixture (10) to complete conveying and feeding operation of a cathode sheet respectively, and the cathode butt-welding machine (9) welds the cathode and the battery body (11-1) together to complete automatic welding of lithium battery sheets.

The battery body feeding mechanism (1) consists of a conveying belt (1-1), a front cover plate (1-2), a rear cover plate (1-3), a pushing cylinder (1-4) and a battery body pushing head (1-5); the battery body (11-1) is conveyed forwards sequentially through the conveying belt (1-1), enters a gap between the front cover plate (1-2) and the rear cover plate (1-3) through a channel on the rear cover plate (1-3), the pushing cylinder (1-4) is installed on the front cover plate (1-2) and the rear cover plate (1-3), an extending shaft of the pushing cylinder is located at the gap between the front cover plate (1-2) and the rear cover plate (1-3), the extending shaft of the pushing cylinder (1-4) is connected with the battery body pushing head (1-5), and the battery body pushing head (1-5) pushes the battery body (11-1) into the anode welding clamp (5) to finish the charging operation of the battery body.

The anode feeding mechanical arm (3) consists of an anode sheet carrier plate (3-1), a rotating disc (3-2) and a rotating motor (3-3); an anode sheet carrier plate (3-1) in the anode feeding mechanical arm (3) absorbs the anode sheets (11-2) conveyed by the anode vibration conveying mechanism (2), and the rotating motor (3-3) drives the rotating disc (3-2) to rotate, so that the anode sheets (11-2) are fed into the anode welding fixture (5), and the feeding operation of the anode sheets (11-2) is completed.

The anode welding fixture (5) consists of a fixed table (5-1), a battery guide groove (5-2), a fixture A plate (5-3), a fixture B plate (5-4), a clamping assembly (5-5), a supporting guide post (5-6), a sliding block (5-7), a connecting plate (5-8), a lifting plate (5-9), a jacking cylinder (5-10), a horizontal sliding group (5-11), a pushing cylinder (5-12), a pushing plate (5-13) and a suction column (5-14); wherein the fixed platform (5-1) is fixedly installed, the battery guide groove (5-2) is installed on the fixed platform (5-1), the battery body pushing head (1-5) pushes the battery body (11-1) to a position between the clamp A plate (5-3) and the clamp B plate (5-4) through the battery guide groove (5-2), the clamp A plate (5-3) and the clamp B plate (5-4) have a certain gap, the lower surface of the fixed platform (5-1) is supported by the supporting guide post (5-6), the slide block (5-7) is matched with the supporting guide post (5-6), the slide block (5-7) can slide on the supporting guide post (5-6), one surface of the connecting plate (5-8) is connected with the slide block (5-7), and the other surface is connected with the lifting plate (5-9), the jacking cylinder (5-10) is positioned below the lifting plate (5-9), an extension shaft of the jacking cylinder (5-10) is connected with the lifting plate (5-9), the horizontal sliding group (5-11) is arranged on the lifting plate (5-9), the pushing plate (5-13) is matched with the horizontal sliding group (5-11), the pushing plate (5-13) can slide along the horizontal sliding group (5-11), the extension shaft of the pushing cylinder (5-12) is connected with the pushing plate (5-13), the suction column (5-14) is arranged on the pushing plate (5-13), the suction column (5-14) is positioned between the clamp A plate (5-3) and the clamp B plate (5-4), the suction column (5-14) sucks the pool body (11-1), the clamping component (5-5) is arranged on one side of the clamp A plate (5-3), clamping a battery body (11-1) and a battery anode (11-2), welding the battery body (11-1) and the battery anode (11-2) together by an anode butt-welding machine (4), jacking a lifting plate (5-9) by a jacking cylinder (5-10) to jack a suction column (5-14) of a pushing plate (5-13), sucking the battery body (11-1) on the suction column (5-14), pushing the pushing plate (5-13) to move forwards by a pushing cylinder (5-12) to enable the unwelded body (11-1) and the battery anode (11-2) to reach the position of a clamping assembly (5-5), descending the lifting plate (5-9) by the jacking cylinder (5-10), and enabling the unwelded body (11-1) and the battery anode (11-2) to fall between a clamp A plate (5-3) and a clamp B plate (5-4), the clamping assembly (5-5) clamps to perform the next group of welding, the pushing cylinder (5-12) returns to return the suction column (5-14), and the automatic welding of the anode is completed in a circulating reciprocating mode.

The overturning and conveying mechanism (6) consists of a pushing and rotating cylinder (6-1), a batten (6-2), a rack (6-3), a rack guide groove (6-4), a gear (6-5), a rotating shaft (6-6), a bearing seat (6-7) and a clamping jaw cylinder (6-8); wherein an extension shaft of a push-turn cylinder (6-1) is connected with a slat (6-2), the slat (6-2) is connected with a rack (6-3), the rack (6-3) is arranged in a rack guide groove (6-4), the rack (6-3) can slide along the rack guide groove (6-4), a gear (6-5) is matched with the rack (6-3), the push-turn cylinder (6-1) pushes the rack (6-3) to move linearly so that the gear (6-5) makes rotary motion, the gear (6-5) is connected with a rotating shaft (6-6), two ends of the rotating shaft (6-6) are fixedly arranged through a bearing in a bearing seat (6-7), a clamping jaw cylinder (6-8) is arranged on the rotating shaft (6-6), and the clamping jaw cylinder (6-8) is driven to complete overturning operation through the rotation of the rotating shaft (6-6), the cathode of the battery body (11-1) can be automatically turned over by the turning and conveying mechanism (6), so that the welding operation of the cathode is facilitated.

Drawings

FIG. 1 is a general structure diagram of a lithium battery pole piece welding machine;

FIG. 2 is a diagram of a battery body feeding mechanism of a lithium battery pole piece welding machine;

FIG. 3 is a structural diagram of an anode welding fixture of a lithium battery pole piece welding machine;

FIG. 4 is a detailed view of the structure of an anode welding fixture of a lithium battery pole piece welding machine;

FIG. 5 is a structural diagram of a turning conveying mechanism of a lithium battery pole piece welding machine;

FIG. 6 is a structural diagram of a battery body and an anode plate of a lithium battery pole piece welding machine;

wherein: the device comprises a battery body feeding mechanism (1), an anode vibrating conveying mechanism (2), an anode feeding manipulator (3), an anode butt-welding machine (4), an anode welding fixture (5), a turnover conveying mechanism (6), a cathode sheet vibrating conveying mechanism (7), a cathode feeding mechanic (8), a cathode butt-welding machine (9), a cathode welding fixture (10), a conveying belt (1-1), a front cover plate (1-2), a rear cover plate (1-3), a pushing cylinder (1-4), a battery body pushing head (1-5), an anode sheet support plate (3-1), a rotating disc (3-2), a rotating motor (3-3), a fixed table (5-1), a battery guide groove (5-2), a fixture A plate (5-3), a fixture B plate (5-4), a clamping assembly (5-5), The device comprises a supporting guide post (5-6), a sliding block (5-7), a connecting plate (5-8), a lifting plate (5-9), a jacking cylinder (5-10), a horizontal sliding group (5-11), a pushing cylinder (5-12), a pushing plate (5-13), an absorption post (5-14), a pushing and rotating cylinder (6-1), a batten (6-2), a rack (6-3), a rack guide groove (6-4), a gear (6-5), a rotating shaft (6-6), a bearing seat (6-7), a clamping jaw cylinder (6-8), a battery body (11-1) and an anode sheet (11-2).

Detailed Description

The invention will be further described with reference to the following figures and specific examples, but the scope of the invention is not limited thereto.

The lithium battery pole piece welding machine shown in the figures 1-5 is composed of a battery body feeding mechanism (1), an anode vibration conveying mechanism (2), an anode feeding mechanical arm (3), an anode butt-welding machine (4), an anode welding fixture (5), a turnover conveying mechanism (6), a cathode piece vibration conveying (7), a cathode feeding mechanic (8), a cathode butt-welding machine (9) and a cathode welding fixture (10), wherein the battery body feeding mechanism (1) is composed of a conveying belt (1-1), a front cover plate (1-2), a rear cover plate (1-3), a pushing cylinder (1-4) and a battery body pushing head (1-5); the battery body (11-1) is conveyed forwards sequentially through the conveying belt (1-1), enters a gap between the front cover plate (1-2) and the rear cover plate (1-3) through a channel on the rear cover plate (1-3), the pushing cylinder (1-4) is installed on the front cover plate (1-2) and the rear cover plate (1-3), an extending shaft of the pushing cylinder is located at the gap between the front cover plate (1-2) and the rear cover plate (1-3), the extending shaft of the pushing cylinder (1-4) is connected with the battery body pushing head (1-5), and the battery body pushing head (1-5) pushes the battery body (11-1) into the anode welding clamp (5) to finish the charging operation of the battery body; the anode feeding mechanical arm (3) consists of an anode sheet carrier plate (3-1), a rotating disc (3-2) and a rotating motor (3-3); an anode sheet carrier plate (3-1) in the anode feeding manipulator (3) absorbs an anode sheet (11-2) conveyed by the anode vibration conveying mechanism (2), and a rotating motor (3-3) drives a rotating disc (3-2) to rotate, so that the anode sheet (11-2) is fed into an anode welding clamp (5), and the feeding operation of the anode sheet (11-2) is completed; the anode welding fixture (5) consists of a fixed table (5-1), a battery guide groove (5-2), a fixture A plate (5-3), a fixture B plate (5-4), a clamping assembly (5-5), a supporting guide post (5-6), a sliding block (5-7), a connecting plate (5-8), a lifting plate (5-9), a jacking cylinder (5-10), a horizontal sliding group (5-11), a pushing cylinder (5-12), a pushing plate (5-13) and a suction column (5-14); wherein the fixed platform (5-1) is fixedly installed, the battery guide groove (5-2) is installed on the fixed platform (5-1), the battery body pushing head (1-5) pushes the battery body (11-1) to a position between the clamp A plate (5-3) and the clamp B plate (5-4) through the battery guide groove (5-2), the clamp A plate (5-3) and the clamp B plate (5-4) have a certain gap, the lower surface of the fixed platform (5-1) is supported by the supporting guide post (5-6), the slide block (5-7) is matched with the supporting guide post (5-6), the slide block (5-7) can slide on the supporting guide post (5-6), one surface of the connecting plate (5-8) is connected with the slide block (5-7), and the other surface is connected with the lifting plate (5-9), the jacking cylinder (5-10) is positioned below the lifting plate (5-9), an extension shaft of the jacking cylinder (5-10) is connected with the lifting plate (5-9), the horizontal sliding group (5-11) is arranged on the lifting plate (5-9), the pushing plate (5-13) is matched with the horizontal sliding group (5-11), the pushing plate (5-13) can slide along the horizontal sliding group (5-11), the extension shaft of the pushing cylinder (5-12) is connected with the pushing plate (5-13), the suction column (5-14) is arranged on the pushing plate (5-13), the suction column (5-14) is positioned between the clamp A plate (5-3) and the clamp B plate (5-4), the suction column (5-14) sucks the pool body (11-1), the clamping component (5-5) is arranged on one side of the clamp A plate (5-3), clamping a battery body (11-1) and a battery anode (11-2), welding the battery body (11-1) and the battery anode (11-2) together by an anode butt-welding machine (4), jacking a lifting plate (5-9) by a jacking cylinder (5-10) to jack a suction column (5-14) of a pushing plate (5-13), sucking the battery body (11-1) on the suction column (5-14), pushing the pushing plate (5-13) to move forwards by a pushing cylinder (5-12) to enable the unwelded body (11-1) and the battery anode (11-2) to reach the position of a clamping assembly (5-5), descending the lifting plate (5-9) by the jacking cylinder (5-10), and enabling the unwelded body (11-1) and the battery anode (11-2) to fall between a clamp A plate (5-3) and a clamp B plate (5-4), the clamping assembly (5-5) clamps to perform the next group of welding, the pushing cylinder (5-12) returns to return the suction column (5-14), and the automatic welding of the anode is completed in a circulating reciprocating manner; the overturning and conveying mechanism (6) consists of a pushing and rotating cylinder (6-1), a batten (6-2), a rack (6-3), a rack guide groove (6-4), a gear (6-5), a rotating shaft (6-6), a bearing seat (6-7) and a clamping jaw cylinder (6-8); wherein an extension shaft of a push-turn cylinder (6-1) is connected with a slat (6-2), the slat (6-2) is connected with a rack (6-3), the rack (6-3) is arranged in a rack guide groove (6-4), the rack (6-3) can slide along the rack guide groove (6-4), a gear (6-5) is matched with the rack (6-3), the push-turn cylinder (6-1) pushes the rack (6-3) to move linearly so that the gear (6-5) makes rotary motion, the gear (6-5) is connected with a rotating shaft (6-6), two ends of the rotating shaft (6-6) are fixedly arranged through a bearing in a bearing seat (6-7), a clamping jaw cylinder (6-8) is arranged on the rotating shaft (6-6), and the clamping jaw cylinder (6-8) is driven to complete overturning operation through the rotation of the rotating shaft (6-6), the cathode of the battery body (11-1) can be automatically turned over by the turning and conveying mechanism (6), so that the welding operation of the cathode is facilitated.

As shown in the figures 1-5, the lithium battery pole piece welding machine is characterized in that a battery body (11-1) is sequentially conveyed forwards through a conveying belt (1-1), an extending shaft of a pushing cylinder (1-4) is connected with a battery body pushing head (1-5), the battery body pushing head (1-5) pushes the battery body (11-1) between a clamp A plate (5-3) and a clamp B plate (5-4), a suction column (5-14) sucks a battery body (11-1), a lifting plate (5-9) is lifted up by a lifting cylinder (5-10) so that the suction column (5-14) of the pushing plate (5-13) is lifted up, a pushing cylinder (5-12) pushes a pushing plate (5-13) to move forwards so that the battery body (11-1) reaches the position of a clamping assembly (5-5), the lifting cylinder (5-10) drops the lifting plate (5-9), the body (11-1) falls between the clamp A plate (5-3) and the clamp B plate (5-4), the rotating motor (3-3) drives the rotating disk (3-2) to rotate, the anode sheet (11-2) is fed into the anode welding clamp (5), the clamping assembly (5-5) clamps the body (11-1) and the anode sheet (11-2), the anode butt-welding machine (4) completes the welding operation of the battery body (11-1) and the battery anode (11-2) on the anode welding clamp (5), then the lifting cylinder (5-10) and the pushing cylinder (5-12) perform a recycling action to push the welded battery forward, meanwhile, the unwelded battery moves forward, and the operation of welding the battery body (11-1) and the battery anode (11-2) is completed in a circulating and reciprocating manner, the overturning conveying mechanism (6) overturns one end of the anode welded by the anode welding fixture (5), so that the cathode of the battery body (11-1) is upward, the cathode sheet vibration conveying mechanism (7) and the cathode feeding mechanic (8) are positioned on one side of the cathode welding fixture (10) to respectively complete the conveying and feeding operations of the cathode sheet, and the cathode butt-welding machine (9) welds the cathode and the battery body (11-1) together to complete the automatic welding of the lithium battery pole pieces.

The above-described embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above-described embodiments, and any obvious improvements, substitutions or modifications can be made by those skilled in the art without departing from the spirit of the present invention.