CN103730694B - A lithium battery welding detection and marking all-in-one machine - Google Patents

Abstract

The invention discloses a lithium battery welding, detecting and marking integrated machine, wherein a plurality of guide grooves are formed in a conveying device, a welding assembly, a detecting assembly and a marking assembly are arranged adjacent to the conveying device and in sequence along the conveying direction of the conveying device, the welding assembly comprises a rotary clamp, a welding manipulator and a welding arm, and a welding head is arranged at the end part of the welding arm; the detection assembly comprises a rotary table and a detection manipulator, wherein the rotary table is sequentially provided with a feeding station, an air tightness testing station, a short circuit testing station and a discharging station which are arranged at intervals of 90 degrees; the marking assembly comprises a marking manipulator and a marking machine. The lithium battery welding, detecting and marking all-in-one machine with the structure adopts full-automatic operation, and can complete five processes of welding, air tightness testing, short circuit testing, laser marking and defective product removing of the battery at one time, so that the production efficiency is improved, the stability of the quality is ensured, and the labor intensity is reduced.

Description

A lithium battery welding detection and marking all-in-one machine

technical field

The invention relates to battery processing equipment, in particular to a lithium battery welding detection and marking integrated machine.

Background technique

At present, the demand for square lithium batteries in new energy equipment such as electric vehicles and electric tool machines is increasing. In the process of producing square lithium batteries, battery end cap welding, lithium battery air tightness testing, lithium battery short circuit testing, Lithium battery laser marking, rejecting unqualified products and other processes account for most of the time in the lithium battery production process. Now almost all lithium battery manufacturers use semi-automatic operations, that is, these five processes are completed by four different machine tools. Manual loading and unloading, manual transportation between processes, labor-intensive production, low production efficiency, and unstable product quality.

Contents of the invention

The technical problem to be solved by the present invention is to provide a lithium battery welding detection and marking all-in-one machine for the deficiencies of the prior art. There are five processes of laser marking and rejecting unqualified products, so as to improve production efficiency, ensure the stability of quality, and reduce labor intensity.

In order to solve the above technical problems, the present invention adopts the following technical solutions.

An all-in-one machine for lithium battery welding detection and marking, which includes a conveying device, the conveying device is provided with a plurality of guide grooves, adjacent to the conveying device and along the conveying direction of the conveying device, a welding assembly, a detection assembly and a printing assembly are sequentially arranged. A standard assembly, wherein: the welding assembly includes a rotary fixture, a welding manipulator and a welding arm for grabbing the battery on the transfer device to the rotary fixture, and the rotary fixture includes a rotary table and a motor that drives the rotary table to rotate , the motor is a DD motor, and the end of the welding arm is provided with a welding head for welding the battery shell and the battery cover; To the detection manipulator of the rotating disk, the rotating disk is successively provided with a feeding station, an airtight testing station, a short circuit testing station and a blanking station at intervals of 90°. An airtight tester is correspondingly provided, and a short-circuit tester is correspondingly provided at the short-circuit test station; the marking assembly includes a marking manipulator and a marking machine, and the marking manipulator grabs and lifts the battery from the conveying device , the battery is marked by the marking machine, and then the marking manipulator places the battery back into the conveyor.

Preferably, the rotating disk is composed of a divider, a rotating plate and a battery testing jig.

Preferably, the rotating fixture further includes a clamping block bracket, the clamping block bracket is arranged above the rotary table, and a plurality of clamping blocks for clamping the battery case and the battery cover are arranged on the clamping block bracket, A plurality of biaxial air cylinders for driving the clamp block to reciprocate and slide are arranged on the clamp block support.

Preferably, the number of clamping blocks is 4, and the 4 clamping blocks are respectively arranged opposite to the surroundings of the battery, and the driving mechanism of the clamping blocks is composed of four sets of biaxial cylinders, linear guide rails and telescopic cylinders.

Preferably, the rotary fixture also includes a linear feed module, the linear feed module includes a guide rail and a telescopic cylinder, the rotary table is arranged on the linear feed module, and the linear feed module The group drives the rotary table to move to or move out from under the clamping block support.

Preferably, the clamping block bracket includes a bottom plate with an opening in the middle, the bottom plate is provided with a linear guide rail extending upward, and a linear slider is provided on the clamping block bracket, and the linear slider is engaged with the linear guide rail and the two are slidingly connected, the bottom plate is provided with a lifting cylinder, and the stroke of the lifting cylinder is in the vertical direction, and the power output end of the lifting cylinder is fixedly connected with the clamping block bracket.

Preferably, the welding manipulator includes a vertical driver, a horizontal driver and a gripping part, the gripping part is composed of two sets of air grippers, the vertical driver is fixed to the power output end of the horizontal driver, and the horizontal driver The vertical driver is driven to move in the horizontal direction, the grasping part is fixed to the power output end of the vertical driver, and the vertical driver drives the grasping part to move in the vertical direction.

Preferably, the guide grooves are the guide grooves for qualified products, the guide grooves for unqualified products in air tightness detection, and the guide grooves for unqualified products in short circuit detection, and a storage cylinder and a material retaining cylinder are arranged inside the guide grooves.

Preferably, the welding head is a laser welding head.

Preferably, the welding arm is a three-axis robotic arm.

In the lithium battery welding detection and marking all-in-one machine disclosed in the present invention, the transmission device is provided with a plurality of guide grooves, adjacent to the transmission device and along the transmission direction of the transmission device, a welding assembly, a detection assembly and a marking assembly are sequentially provided. The welding assembly includes a rotating fixture, a welding manipulator and a welding arm, the end of the welding arm is provided with a welding head; Angularly spaced loading station, airtight test station, short circuit test station and unloading station; the marking assembly includes a marking manipulator and a marking machine. The lithium battery welding, testing and marking all-in-one machine with the above structure adopts fully automatic operation to complete the five processes of battery welding, air tightness test, short circuit test, laser marking, and rejection of unqualified products at one time, thereby improving production efficiency and ensuring quality stability and reduce labor intensity.

Description of drawings

Figure 1 is a block diagram of the overall structure of the lithium battery welding inspection and marking all-in-one machine.

Fig. 2 is a side view of the lithium battery welding inspection and marking all-in-one machine.

Fig. 3 is a top view of the lithium battery welding inspection and marking all-in-one machine.

Fig. 4 is a perspective view of a welding robot.

Fig. 5 is a perspective view of the rotary jig.

Fig. 6 is a perspective view of a detection assembly.

Fig. 7 is a structural schematic diagram of a welding arm and a welding head.

detailed description

The present invention will be described in more detail below in conjunction with the accompanying drawings and embodiments.

The invention discloses an all-in-one machine for welding, testing and marking of lithium batteries. The all-in-one machine for lithium batteries performs welding of battery shells and battery covers, battery air tightness testing, and battery short-circuit testing, and effectively separates qualified products from unqualified products. As shown in FIG. 1 to FIG. 3 and FIG. 7, it includes a conveying device 1, and a plurality of guide grooves 100 are arranged on the conveying device 1. According to actual needs, the detected batteries are placed in the guide grooves 100 accordingly. Inside, a plurality of guide grooves 100 can be respectively guide grooves for qualified products, guide grooves for unqualified products in air tightness detection, and guide grooves for unqualified products in short circuit detection, so as to realize the rejection of unqualified products. The guide grooves 100 can be provided with The storage cylinder and the blocking cylinder, and through the flexible control of these two cylinders, the battery can be resisted in the guide groove 100, or the battery can be transported to the recycling place.

Adjacent to the above-mentioned conveying device 1 and along the conveying direction of the conveying device 1, a welding assembly 200, a detection assembly 300, and a marking assembly 400 are sequentially arranged, and the batteries on the conveying device 1 are sequentially processed and detected through the above three assemblies to form an automated equipment, eliminating a lot of human labor, among which:

The welding assembly 200 includes a rotary fixture 6, a welding manipulator 2 for grabbing the battery on the transfer device 1 to the rotary fixture 6, and a welding arm 8. The end of the welding arm 8 is provided for connecting the battery case with the The battery cover is welded into a welding head 9 which is preferably a laser welding head, and the welding arm 8 is preferably a three-axis robot arm. In applications, multiple sets of welding assemblies 200 may be provided according to actual needs.

In this welding assembly 200, please refer to Fig. 1 to Fig. 5, and the rotary fixture 6 includes a rotary table 201 and a motor 19 that drives the rotary table 201 to rotate, the motor 19 is a DD motor, and the battery is placed on the rotary table 201, as The rotation of the rotary table 201 can utilize the welding head 9 to weld the periphery of the joint between the battery case and the battery cover. In order to clamp the battery, the rotating fixture 6 also includes a clamping block bracket 203, the clamping block bracket 203 is arranged on the top of the rotating table 201, and the clamping block bracket 203 is provided with the battery case and the battery. A plurality of clamping blocks 7 clamped by the cover. The clamping block bracket 203 is provided with a plurality of biaxial cylinders 22 for driving the clamping blocks 7 to reciprocate and slide. The alignment mechanism is formed by the above clamping blocks 7 and the biaxial cylinders 22. Under the action of the clamping block 7, the battery case can be aligned with the battery cover, making the welding process more rapid and stable. In practical application, the driving mechanism of clamping block 7 is composed of four groups of biaxial cylinders, linear guide rails and telescopic cylinders.

In practical applications, in order to facilitate the welding manipulator 2 to place the battery on the rotary table 201, the rotary fixture 6 also includes a linear feed module 14, and the linear feed module 14 includes a guide rail and a telescopic cylinder. The table 201 is arranged on the linear feed module 14, and the rotary table 201 is driven by the linear feed module 14 to move to the bottom of the clamp bracket 203 or to move out from the bottom of the clamp bracket 203. Under the action of 14, the battery can be moved below the clamping block bracket 203, so that the clamping block bracket 203 can align and clamp the battery shell and the battery cover. After the welding is completed, the linear feed module 14 can also place the The rotating table 201 is moved out from below the clamping block bracket 203 , and the battery is placed back into the transfer device 1 by the welding manipulator 2 .

The clamp bracket 203 in this embodiment is liftable, and the clamp bracket 203 includes a bottom plate 204 with an opening in the middle, and the bottom plate 204 is provided with a linear guide rail 210 extending upward. A linear slider 21 is provided, and the linear slider 21 is engaged on the linear guide rail 210 and the two are slidably connected. The bottom plate 204 is provided with a lifting cylinder 202, and the stroke of the lifting cylinder 202 is in the vertical direction. The power output end of the lifting cylinder 202 is fixedly connected with the clamp bracket 203. When the clamp bracket 203 descends, the battery case can be aligned and clamped with the battery cover by cooperating with the control of the biaxial cylinder 22. When the clamp bracket 203 rises with The battery is separated, and the rotary table 201 is driven by the linear feeding module 14 , so that the battery is removed from the bottom of the clamping block bracket 203 . Regarding the specific structure of the manipulator, the welding manipulator 2 includes a vertical driver 17, a horizontal driver 18 and a gripping portion 16, the gripping portion 16 is composed of two sets of air grippers, and the vertical driver 17 is fixed to the horizontal driver 18, and the vertical driver 17 is driven by the horizontal driver 18 to move in the horizontal direction. Move in the vertical direction, driven by the vertical driver 17 and the horizontal driver 18, so that the grabbing part 16 can grab the battery on the conveying device 1, and then place it on the welding clamping device 6 for welding. After the welding is completed, Then the battery on the rotating platform 201 is picked up by the grabbing part 16 and put back on the conveying device 1 .

Please refer to FIG. 1, FIG. 2, FIG. 3 and FIG. 6, the detection assembly 300 includes a rotating disk 15 and a detection manipulator 3 for grabbing the battery on the transfer device 1 to the rotating disk 15, and the rotating disk 15 is divided by In practical applications, the divider can be a DD motor, a servo motor or an acceleration and deceleration motor. The rotating disk 15 is sequentially provided with feeding stations 10, 10, Airtight test station, short circuit test station and blanking station 13, said airtight test station is provided with an airtight tester 23 correspondingly, said short circuit test station is provided with a short circuit tester 24 correspondingly, when After the battery is welded, it is sent to the inspection assembly 300. The inspection manipulator 3 grabs the battery on the transfer device 1 and places it on the loading station 10. After that, the rotating disk 15 rotates at an angle of 90° to transfer the battery to the airtight test station. position, the airtightness of the battery is detected by the air tightness tester 23, and then the rotating disk 15 is rotated at an angle of 90° to transfer the battery to the short circuit test station, and the short circuit test is carried out to the battery by the short circuit tester 24, after the detection is completed The rotating disk 15 rotates again at an angle of 90°, and the battery is sent to the unloading station 13, and the battery is picked up by the detection manipulator 3, and placed in the guide groove of the conveying device 1 for qualified products according to the detection results, and the unqualified products for airtight detection Guide trough and short circuit detection defective product guide trough. In the above process, when the battery at the feeding station 10 is transferred to the airtight testing station, the next station becomes the feeding station. At this time, the detection manipulator 3 grabs the battery on the conveying device 1 and places it At the station, sequentially, the detection assembly 300 can continuously detect a plurality of batteries, thereby having higher work efficiency.

The marking assembly 400 includes a marking manipulator 4 and a marking machine 5, the marking manipulator 4 grabs and lifts the battery from the conveying device 1, and the marking machine 5 marks the battery, and then the marking manipulator 4 will Put the battery back to the transmission device 1. As a preferred method, the marking manipulator 4 only grabs the battery in the guide groove of the qualified product, so as to mark the qualified battery. After the marking is completed, the marking manipulator 4 puts the battery back Place back on the conveyor 1 so that the battery is conveyed to the end of the conveyor 1 and stored.

In the integrated lithium battery welding detection and marking machine disclosed in the present invention, the conveying device 1 is provided with a plurality of guide grooves 100, adjacent to the conveying device 1 and along the conveying direction of the conveying device 1, a welding assembly 200 and a detection assembly are sequentially provided. 300 and a marking assembly 400, the welding assembly 200 includes a rotary fixture 6, a welding manipulator 2 and a welding arm 8, the end of the welding arm 8 is provided with a welding head 9; the detection assembly 300 includes a rotating disk 15 And detection manipulator 3, described rotary table 201 is provided with the feeding station 10, airtight test station, short-circuit test station and unloading station 13 with 90 ° angle interval successively on the described rotary table 201; Described marking assembly 400 comprises There are marking manipulator 4 and marking machine 5. The lithium battery welding, testing and marking all-in-one machine with the above structure adopts fully automatic operation to complete the five processes of battery welding, air tightness test, short circuit test, laser marking, and rejection of unqualified products at one time, thereby improving production efficiency and ensuring quality stability and reduce labor intensity.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. All modifications, equivalent replacements or improvements made within the technical scope of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. a lithium battery welding certification mark all-in-one, it is characterized in that, include conveyer, described conveyer is provided with multiple guide groove, adjacent with conveyer and direction of transfer along conveyer is provided with weld assembly, detection components and mark assembly successively, wherein:

Described weld assembly include rolling clamp, for by conveyer battery capture to rolling clamp welding manipulator and welding arm, the motor that described rolling clamp includes rotating platform and drives this rotating platform to rotate, described motor is DD motor, and the end of described welding arm is provided with the plumb joint for battery case and battery cover being welded as a whole;

Described detection components includes rotating disk and for capturing to the inspecting manipuator of rotating disk by the battery on conveyer, described rotating disk is provided with successively with the feeding station of 90 ° of angle intervals, airtight test station, short-circuit test station and discharge station, described airtight test station place correspondence is provided with gas-tight tester, and described short-circuit test station place correspondence is provided with short circuit tester;

Described mark assembly includes mark manipulator and marking machine, and described mark manipulator captures from conveyer and mentions battery, and by marking machine to battery marking, battery is placed back conveyer by mark manipulator afterwards.

2. lithium battery welding certification mark all-in-one as claimed in claim 1, it is characterized in that, described rotating disk is made up of dispenser, flap and battery detecting fixture.

3. lithium battery welding certification mark all-in-one as claimed in claim 1, it is characterized in that, described rolling clamp also includes fixture block support, described fixture block props up the top being set up in rotating platform, the multiple fixture blocks be provided with for battery case and battery cover being clamped of described fixture block support, described fixture block support is provided with multiple twin shaft cylinder for driving fixture block to reciprocatingly slide.

4. lithium battery welding certification mark all-in-one as claimed in claim 3, it is characterized in that, the quantity of described fixture block is 4, and 4 fixture blocks are oppositely arranged with the surrounding of battery respectively, and the driving mechanism of described fixture block is made up of four groups of twin shaft cylinders, line slideway and telescopic cylinders.

5. lithium battery welding certification mark all-in-one as claimed in claim 3, it is characterized in that, described rolling clamp also includes straight-line feed module, described straight-line feed module includes guide rail and telescopic cylinder, described rotating platform is located on straight-line feed module, and drives described rotating platform to move to below fixture block support or from the below of fixture block support by straight-line feed module to shift out.

6. lithium battery welding certification mark all-in-one as claimed in claim 5, it is characterized in that, described fixture block support comprises centre and is provided with on the base plate of opening, described base plate is provided with the line slideway upwards extended, described fixture block support is provided with linear slider, and described linear slider is sticked on line slideway and the two is slidably connected, and described base plate is provided with lift cylinder, and the stroke of lift cylinder is vertical direction, the clutch end of described lift cylinder is fixedly connected with fixture block support.

7. lithium battery welding certification mark all-in-one as claimed in claim 1, it is characterized in that, described welding manipulator includes vertical driver, horizontal driver and crawl section, described crawl section is made up of two cover gas pawls, described vertical driver is fixed on the clutch end of horizontal driver, and drive vertical driver to move in the horizontal direction by horizontal driver, the clutch end of vertical driver is fixed in described crawl section, and is moved at vertical direction by vertical driver drives crawl section.

8. lithium battery welding certification mark all-in-one as claimed in claim 1, it is characterized in that, described guide groove is respectively qualified product guide groove, airtight detection defective item guide groove and short-circuit detecting defective item guide groove, is provided with storing cylinder and backgauge cylinder within described guide groove.

9. lithium battery welding certification mark all-in-one as claimed in claim 1, it is characterized in that, described plumb joint is laser welding system.

10. lithium battery welding certification mark all-in-one as claimed in claim 1, it is characterized in that, described welding arm is three axle robert arm.