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CN-115945824-B - Battery packaging equipment for automobile battery production and processing

CN115945824BCN 115945824 BCN115945824 BCN 115945824BCN-115945824-B

Abstract

The invention discloses battery packaging equipment for producing and processing automobile batteries, belonging to the technical field of battery production and packaging, and aiming at solving the problem that the automatic welding point is inconvenient to detect in the lithium battery packaging process in the prior art. The welding device comprises a battery conveying line, a controller, a welding station and a welding detection station, wherein the welding station and the welding detection station are arranged on the battery conveying line, a vacuum pump and a plurality of suction devices are arranged on the welding detection station, a hollow cavity is arranged in the suction devices, the bottom end of the suction devices is provided with a unique air inlet, each suction device is communicated with an air extraction end of the vacuum pump through an air pipe, and a negative pressure sensing device in telecommunication connection with the controller is arranged on each suction device. The invention is used for detecting the reliability of welding spots in the welding process of the lithium battery, can be a reliable solution for automatically detecting the welding spots, and can effectively solve the problem of low product yield caused by welding spot defects in the traditional production and packaging process.

Inventors

  • LUO FEI
  • ZHAO ZHENDONG
  • LIU BAINAN
  • LU HAO

Assignees

  • 溧阳天目先导电池材料科技有限公司
  • 南京工程学院

Dates

Publication Date
20260505
Application Date
20230113

Claims (9)

  1. 1. The battery packaging equipment for the production and processing of the automobile battery is characterized by comprising a battery conveying line (1), a controller (6) and a welding detection station (3) arranged on the battery conveying line (1); The welding detection station (3) is provided with a vacuum pump (5) and a plurality of suction devices (4), a hollow cavity is arranged in the suction devices (4), the bottom end of the suction device is provided with a unique air inlet, and each suction device (4) is communicated with an air suction end of the vacuum pump (5) through an air pipe; Each suction device (4) is provided with a negative pressure sensing device in telecommunication connection with the controller (6), and the negative pressure sensing devices are used for monitoring the change of negative pressure in the cavity of the suction device (4) and transmitting negative pressure change information to the controller (6); the suction port device is arranged above the welded lithium battery, the bottom end of the suction port device can adsorb the welded nickel strap by utilizing the negative pressure generated by the vacuum pump, the suction port device is influenced by the shape of the nickel strap and the dead weight of the lithium battery when passing through the welding spot, the nickel strap is separated from the bottom end of the suction port device to open the air port, and the change of the negative pressure in the suction port device is reflected, so that the negative pressure change rule is regular when the lithium battery is effectively welded.
  2. 2. The battery packaging device for automobile battery production and processing according to claim 1, wherein the negative pressure sensing device is a negative pressure sensor (14).
  3. 3. The battery packaging device for automobile battery production and processing according to claim 1, wherein the negative pressure sensing device comprises a sliding rod (16) which is arranged on the wall surface of the suction device (4) in a sliding manner, a sealing plate (17) is fixedly arranged at the end part of the sliding rod (16), a spring (19) with two ends respectively abutting against the sealing plate (17) and the wall surface of the suction device (4) is further sleeved on the sliding rod (16), a telescopic wrapping cloth (18) connected to the wall surface of the suction device (4) is arranged on the periphery of the sealing plate (17), and a point contact switch used for being connected with the sealing plate (17) or the sliding rod (16) is arranged on the suction device (4), and each point contact switch is electrically connected with the controller (6).
  4. 4. The battery packaging device for automobile battery production and processing according to claim 1, further comprising a sorting device for removing the battery to be packaged on the battery conveying line (1) when the welding detection is failed.
  5. 5. The battery packaging device for automobile battery production and processing according to claim 1, wherein a lifting plate (7) capable of moving up and down is arranged on the welding detection station (3), a positioning plate (9) capable of sliding horizontally is arranged on the lifting plate (7), a fixing plate (11) for fixing the suction device (4) is arranged at the bottom of the positioning plate (9), a first motor (8) for driving the lifting plate (7) to lift is arranged on the welding detection station (3), and a second motor (10) for driving the positioning plate (9) to move is arranged on one side of the lifting plate (7).
  6. 6. The battery packaging device for automobile battery production and processing according to claim 5, wherein a chute is formed in the fixing plate (11), a threaded rod (12) which is arranged in the chute in a sliding manner is mounted on each suction device (4), and a locking nut (13) for locking the suction device (4) is connected to each threaded rod (12) in a threaded manner.
  7. 7. The battery packaging device for automobile battery production and processing according to claim 5, wherein the vacuum pump (5) is arranged above the positioning plate (9), and the air pipe of the suction device (4) penetrates through the positioning plate (9) and is communicated with the vacuum pump (5).
  8. 8. Battery packaging apparatus for automotive battery production and processing according to any one of claims 1 to 7, characterized in that the mouthpiece (4) has an overall shape of whistle type with a wide upper part and a narrow lower part.
  9. 9. The battery packaging device for automobile battery production and processing according to claim 8, characterized in that a socket is provided below the mouthpiece (4) near the only air inlet, and a limiting net sheet (15) for preventing excessive deformation of the welding strip is inserted into the socket.

Description

Battery packaging equipment for automobile battery production and processing Technical Field The invention relates to battery packaging equipment for producing and processing automobile batteries, and belongs to the technical field of battery production packaging equipment. Background In the pack packaging process flow of the new energy lithium battery, a corresponding welding machine (commonly a spot welder) is required to weld the battery cell strings so as to realize normal work and stable working voltage of the lithium battery, and the automatic welding process is different from manual work, if welding is not firm or welding spots are lost in the automatic welding operation process, the whole device still continuously works until the pack packaging process is finished, and the battery packs which are not firm in welding, missing welding or welding can not be detected or removed quickly and effectively like manual work, so that the normal promotion of the lithium battery packaging production operation is not facilitated, and the final yield of products is affected to a certain extent. Disclosure of Invention The invention aims to overcome the defects in the prior art, provides battery packaging equipment for producing and processing automobile batteries, is used for detecting the reliability of welding points in the welding process of lithium batteries, can be a reliable solution for automatically detecting the welding points, and can effectively solve the problem of low product yield caused by welding point defects in the traditional production and packaging process. In order to achieve the above purpose, the invention is realized by adopting the following technical scheme: on one hand, the battery packaging equipment for producing and processing the automobile battery comprises a battery conveying line, a controller and a welding detection station arranged on the battery conveying line; The welding detection station is provided with a vacuum pump and a plurality of suction devices, a hollow cavity is arranged in the suction devices, the bottom end of the suction device is provided with a unique air inlet, and each suction device is communicated with an air suction end of the vacuum pump through an air pipe; each suction device is provided with a negative pressure sensing device in telecommunication connection with the controller, and the negative pressure sensing devices are used for monitoring the change of negative pressure in the suction device cavity and transmitting negative pressure change information to the controller. Preferably, the negative pressure sensing device is a negative pressure sensor. Preferably, the negative pressure sensing device comprises a sliding rod which is arranged on the wall surface of the suction port in a sliding manner, a sealing plate is fixedly arranged at the end part of the sliding rod, springs with two ends respectively abutting against the sealing plate and the wall surface of the suction port are further sleeved on the sliding rod, a telescopic wrapping cloth connected to the wall surface of the suction port is arranged on the periphery of the sealing plate, a touch switch used for being connected with the sealing plate or the sliding rod is arranged on the suction port, and each touch switch is electrically connected with the controller. Preferably, the battery packaging machine further comprises a sorting device, wherein the sorting device is used for removing the batteries to be packaged on the battery conveying line when welding detection is failed. Preferably, the welding detection station is provided with a lifting plate capable of moving up and down, the lifting plate is provided with a positioning plate capable of sliding horizontally, the bottom of the positioning plate is provided with a fixing plate for fixing the suction device, the welding detection station is provided with a first motor for driving the lifting plate to lift, and one side of the lifting plate is provided with a second motor for driving the positioning plate to move. Preferably, the fixed plate is provided with a sliding groove, each suction device is provided with a threaded rod which is arranged in the sliding groove in a sliding manner, and each threaded rod is connected with a locking nut for locking the suction device in a threaded manner. Preferably, the vacuum pump is arranged above the positioning plate, and the air pipe of the suction device penetrates through the positioning plate to be communicated with the vacuum pump. Preferably, the overall shape of the suction device is a whistle with a wide upper part and a narrow lower part. Preferably, a socket is arranged at a position below the suction port device and close to the unique air inlet, and a limiting net piece for preventing the welding strip from being excessively deformed is inserted into the socket. Compared with the prior art, the invention has the beneficial effects that: 1. According to the invention, the suctio