CN115144133A - Helium detection system for square-shell battery - Google Patents
Helium detection system for square-shell battery Download PDFInfo
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- CN115144133A CN115144133A CN202210764631.5A CN202210764631A CN115144133A CN 115144133 A CN115144133 A CN 115144133A CN 202210764631 A CN202210764631 A CN 202210764631A CN 115144133 A CN115144133 A CN 115144133A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/362—Laser etching
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- Secondary Cells (AREA)
Abstract
The invention provides a square-shell battery helium testing system which comprises a workbench with a cavity; the material conveying line is arranged on one side of the workbench and is used for conveying the workpiece to be detected; the feeding mechanism is arranged on the workbench and positioned above the material conveying line and used for transferring the workpiece to the helium detection mechanism; the helium detection mechanism is arranged on the workbench and positioned at one end of the feeding mechanism, is used for detecting the sealing property of the fully welded battery, and is arranged in parallel; the transfer mechanism is arranged at one end of the helium detection mechanism, which is far away from the feeding mechanism, and is positioned above one end of the helium detection mechanism. The application of the multi-axis module enables one-way movement to be changed into multi-way linkage, and transportation time is saved to a certain extent.
Description
Technical Field
The invention relates to the technical field of battery detection, in particular to a square-shell battery helium detection system.
Background
At present, helium detection stations on the market all adopt two parallel modules to realize feeding and discharging, a detection mechanism is perpendicular to the modules and placed between the two modules, helium detection equipment is generally narrow in the flow direction of incoming material lines, long in the direction perpendicular to the lines and in a cuboid shape, the transportation distance of the modules is long, and helium detection and laser marking are mutually independent and are two independent devices. In workpiece circulation, a line body is used for transition between the workpiece circulation and the workpiece circulation, and each device needs one set of feeding mechanical arm and discharging mechanical arm.
Disclosure of Invention
The invention aims to provide a square-shell battery helium testing system to solve the problems in the background technology.
In order to achieve the above object, the present invention provides, in one aspect, a square-casing battery helium testing system, including a worktable having a cavity;
the material conveying line is arranged on one side of the workbench and used for conveying the workpiece to be detected;
the code scanning mechanism is arranged on the side edge of the material conveying line;
the feeding mechanism is arranged on the workbench and positioned above the material conveying line and used for transferring the workpiece to the helium detection mechanism;
the helium detection mechanisms are arranged on the workbench and positioned at one end of the feeding mechanism, are used for detecting the sealing performance of the fully welded battery, and are arranged in parallel;
the transfer mechanism is arranged at one end of the helium detection mechanism, which is far away from the feeding mechanism, is positioned above one end of the helium detection mechanism, and is used for transferring the helium-detected workpiece to a line body of the marking mechanism;
the marking mechanism is arranged on one side of the feeding mechanism, is parallel to the helium detection mechanism, and is used for marking codes on the top cover of the battery and recording information;
the recovery mechanism is arranged on one side of the transfer mechanism, which is far away from the helium detection mechanism, and is used for supplying and recovering the helium gas in the helium detection mechanism;
and the blanking mechanism is arranged at one end of the feeding mechanism and is positioned above the material conveying line.
Preferably, the system further comprises:
the clamping assemblies are respectively arranged on the feeding mechanism, the transfer mechanism and the discharging mechanism;
and the NG pull belt is arranged on the workbench, is parallel to the marking mechanism and is used for caching defective batteries.
Preferably, the feed mechanism includes:
the two groups of first transmission modules in the X direction are arranged on the workbench;
the second transmission modules in the Y direction are arranged between the first transmission modules in the two groups of X directions;
the third transmission module in the Z direction is arranged on the second transmission module;
the feeding mechanism is used for driving the clamping assembly to move in the three-dimensional direction and conveying the battery to a specific position where a feeding position of the helium detection mechanism is located.
Preferably, the helium testing mechanism comprises:
the driving module is arranged on the workbench and is positioned at one end of the feeding mechanism;
the positioning detection module is arranged on the driving module;
the vacuum box closing detection module is arranged on the workbench and is positioned above the driving module;
the positioning detection module includes:
the fixing component is arranged on the driving module;
the placing assembly is arranged on the fixing assembly, and a plurality of cavities for placing the battery cells are arranged in the placing assembly;
the first lifting cylinder is arranged between the fixing assembly and the placing assembly and used for lifting the placing assembly to a state that a part at the position where the placing assembly is combined with the vacuum box and the detection module is sealed;
the correlation photoelectric switches are arranged at four corners of the fixed component, and each corner is provided with two groups of correlation photoelectric switches with different heights for detecting whether the battery is inclined or not when placed;
the driving module is provided with three stopping positions which are a feeding area, a detection area and a discharging area respectively, the feeding area, the helium detection area and the discharging area are arranged in series, and the vacuum box combination detection module is located in the detection area of the driving module;
the vacuum box assembling detection module comprises:
the placing frame is arranged on the workbench and is positioned above the driving module;
the hollow shaft cylinders are arranged at the top of the placing frame, are arranged at intervals along the displacement direction of the driving module and are communicated with the recovery mechanism;
the helium injection sealing nozzle is arranged at the bottom of the hollow shaft and is used for vacuumizing and injecting helium inside the battery;
and the vacuumizing assembly is arranged on the placing frame and positioned on one side of the hollow shaft cylinder and used for placing the inside of the assembly for vacuumizing.
Preferably, the helium detection mechanism further comprises:
the helium filling nozzle cleaning mechanism is arranged at the top of the fixing component and is positioned at one end far away from the feeding mechanism and used for cleaning the helium filling sealing nozzle;
annotate helium nozzle cleaning mechanism includes:
the fixed frame is arranged at the top of the fixed component and is positioned at one end far away from the feeding mechanism;
the fixing plate is arranged on the fixing frame;
the second lifting cylinder is arranged between the fixed frame and the fixed plate and used for lifting the fixed plate;
the mounting component is rotatably arranged on the fixed plate,
the driving assembly is arranged on the fixed plate, is rotatably connected with the mounting assembly and is used for driving the mounting assembly to rotate circumferentially;
and the brush component is arranged on the inner wall of the mounting component and used for cleaning the helium filling sealing nozzle.
Preferably, the transfer mechanism includes:
the seventh transmission module in the Y direction is arranged on the workbench and is positioned above one end of the blanking position of the driving module;
the eighth transmission module in the Z direction is arranged on the seventh transmission module;
the transfer mechanism is used for driving the clamping assembly to move in the three-dimensional direction, so that transfer of the battery is realized.
The marking mechanism includes:
the conveying module is arranged on the workbench and is parallel to the helium detection mechanism;
the laser marking assembly is arranged on the workbench and positioned at the top of the conveying module;
the mirror reflection photoelectric switch is arranged at the head end and the tail end of the conveying module and used for feeding back the feeding position and the discharging position of the battery on the conveying module;
the code scanning gun is arranged on the conveying module and is positioned on one side of the laser marking assembly;
the positioning module is arranged on the workbench, positioned on two sides of the conveying module and used for clamping the battery when the battery reaches the position below the laser marking assembly;
the positioning module includes:
the base is arranged below the conveying module, and two ends of the base extend out of the bottom of the conveying module;
the clamping assemblies are arranged at the two ends of the base and are positioned at the two sides of the conveying module;
two sets of actuating cylinders that drive set up respectively in base both sides lateral wall, two sets of actuating cylinders's piston rod is connected in the centre gripping subassembly at base both ends respectively for drive centre gripping subassembly restriction battery is at the ascending degree of freedom of perpendicular to streamline direction.
And the clamping cylinders are respectively arranged at the tops of the clamping assemblies and used for driving the clamps on the clamping assemblies to limit the freedom degree of the batteries in the flow line direction.
Preferably, the laser marking assembly comprises:
the lifting module is arranged on the workbench, is positioned on one side of the conveying module and is used for adjusting the height of the laser generator;
and the laser generator is arranged on the lifting module and is positioned above the NG pull belt.
Preferably, the recovery mechanism comprises:
the air compressor is arranged in the cavity on one side of the workbench;
the high-pressure tank is arranged at one side of the air compressor, is used for storing helium with certain concentration, can provide the helium for the interior of the battery, and is connected with the hollow shaft cylinder through a pipeline;
the low-pressure tank is arranged below the air compressor and is used for primarily storing helium recovered from the interior of the battery;
the helium tank is arranged on one side of the air compressor and is used for injecting helium into the low-pressure tank to adjust the concentration of the recovered helium;
and the nitrogen tank is arranged on one side of the air compressor, communicated with the vacuumizing assembly and used for removing residual helium in the cavity for placing the assembly.
Preferably, the blanking mechanism comprises:
the fourth transmission module in the Y direction is arranged on the workbench;
the fifth transmission module in the X direction is arranged on the fourth transmission module;
the sixth transmission module in the Z direction is arranged on the fifth transmission module;
the blanking mechanism is used for driving the clamping assembly to move in the three-dimensional direction to convey the battery to the material conveying line or the NG pulling belt.
The helium testing of the square-shell battery integrates a helium recovery mechanism and a laser marking mechanism, so that the square-shell battery becomes a whole, the structure is more compact, and the battery after the helium testing is more convenient to transfer to a marking machine. The application of the multi-axis module enables one-way movement to be changed into multi-way linkage, and transportation time is saved to a certain extent.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a schematic structural diagram of a helium testing mechanism according to the present invention;
FIG. 4 is a schematic structural view of a hollow shaft cylinder according to the present invention;
FIG. 5 is a schematic structural view of a helium filling nozzle cleaning mechanism according to the present invention;
FIG. 6 is a schematic view of the upper brush assembly connected to the mounting assembly in accordance with the present invention;
FIG. 7 is a schematic structural view of a feeding mechanism of the present invention;
FIG. 8 is a schematic structural view of the blanking mechanism of the present invention;
FIG. 9 is a schematic view of the marking mechanism of the present invention;
FIG. 10 is a schematic view of a positioning module according to the present invention;
fig. 11 is a schematic structural view of the turning mechanism of the present invention.
Description of the reference numerals
1. Workbench 2, helium detection mechanism
21. Drive module 211, material loading district
212. Detection zone 213, unloading zone
22. Placing frame 23 and fixing assembly
24. Place subassembly 25, helium nozzle cleaning mechanism
251. Fixed frame 252 and second lifting cylinder
253. Drive assembly 254, fixed plate
255. Mounting assembly 256, brush assembly
26. First lifting cylinder 27, cavity
28. Correlation photoelectric switch 29 and vacuumizing assembly
210. Quill shaft cylinder 3 and feeding mechanism
31. The first transmission module 32 and the second transmission module
33. Third transmission module 4, unloading mechanism
41. The fourth transmission module 42 and the fifth transmission module
43. Sixth transmission module 5, NG stretching strap
6. Marking mechanism 61 and conveying module
62. Sweep sign indicating number rifle 63, laser generator
64. Lifting module 65 and mirror reflection photoelectric switch
66. Positioning module 661, base
662. Centre gripping subassembly 663, drive actuating cylinder
7. Transfer mechanism 71 and seventh transmission module
72. Eighth transmission module 8 and recovery mechanism
81. Air compressor 82 and high-pressure tank
83. Helium tank 84 and nitrogen tank
85. Low-pressure tank 9 and clamping assembly
10. Material conveying line 11 and code scanning mechanism
Detailed Description
In the embodiments of the present invention, unless otherwise specified, the use of directional terms such as "upper, lower, top, and bottom" is generally used with respect to the orientation shown in the drawings or the positional relationship of the components with respect to each other in the vertical, or gravitational direction.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between the various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.
As shown in fig. 1-2; an embodiment of the invention provides a helium testing system for a square-shell battery, which comprises:
the device comprises a workbench 1 with a cavity, a material conveying line 10, a code scanning mechanism 11, a feeding mechanism 3, a plurality of groups of helium detection mechanisms 2, a transfer mechanism 7, a marking mechanism 6, a recovery mechanism 8, a blanking mechanism 4, a clamping assembly 9 and an NG (natural gas) pull belt 5, wherein the material conveying line 10 is arranged on one side of the workbench 1 and used for conveying workpieces to be detected; the code scanning mechanism 11 is arranged on the side edge of the material conveying line; the feeding mechanism 3 is arranged on the workbench 1 and positioned above the material conveying line 10 and used for transferring the workpiece to the helium detection mechanism 2; the helium detection mechanisms 2 are arranged on the workbench 1 and located at one end of the feeding mechanism, are used for detecting the sealing performance of the fully welded battery, and are arranged in parallel; the transfer mechanism 7 is arranged at one end of the helium testing mechanism 2, which is far away from the feeding mechanism 3, is positioned above the blanking area 213 at one end of the helium testing mechanism 2, and is used for transferring the helium tested workpiece to the line body of the marking mechanism 6; the marking mechanism 6 is arranged on one side of the feeding mechanism 3, is parallel to the helium detecting mechanism 2, and is used for marking codes on the top cover of the battery and recording information; the recovery mechanism 8 is arranged on one side of the transfer mechanism 7, which is far away from the helium detecting mechanism 2, and is used for supplying and recovering helium gas in the helium detecting mechanism 2 in an inflation mode; the blanking mechanism 4 is arranged at one end of the feeding mechanism 3 and is positioned above the material conveying line 10; the clamping assembly 9 is respectively arranged on the feeding mechanism 3, the transfer mechanism 7 and the blanking mechanism 4; the NG pull belt 5 is arranged on the workbench 1, is parallel to the marking mechanism 6 and is used for caching defective batteries.
Specifically, the code scanning mechanism 11 installed on the material conveying line 10 utilizes a code scanning gun to detect welding seams of batteries in the previous process, find out defective products, the feeding mechanism 3 moves the batteries from the material conveying line 10 to the helium detection mechanism 2 through the clamping component 9, the batteries are subjected to helium detection on the line of the helium detection mechanism 2, when the batteries move to the other end of the helium detection mechanism, the transfer mechanism 7 drives the clamping component 9 to move the batteries from the helium detection mechanism 2 to the feeding position on the line body of the marking mechanism 6, when the batteries move to the discharging position along with the line body, the discharging mechanism 4 moves the welding seams of the batteries, the defective products generated by marking and helium detection to the NG pull belt 5 through the clamping component 9, the qualified products of the batteries are moved to the logistics conveying line 10, so that the qualified batteries are transferred to the next processing area, the matching effect of the feeding mechanism 3 and the transfer mechanism 7 and the discharging mechanism 4 is realized, wherein the unidirectional movement is changed into multidirectional linkage due to the utilization of the multi-axis mechanism, the transportation time is saved to a certain extent, the layout 8 and the layout of the recycling mechanism 6 and the helium detection mechanism are integrated into a compact structure, and the integral multi-axis recycling mechanism can avoid the problem that the whole helium detection mechanism is damaged pipeline is damaged by a collision and the collision of the whole pipeline 1.
Further, referring to fig. 1-2 and 7, the feeding mechanism 3 includes two sets of first transmission modules 31 in the X direction, a set of second transmission modules 32 in the Y direction, and a set of third transmission modules 33 in the Z direction, the first transmission modules 31 are disposed on the workbench 1; the second transmission module 32 is disposed on the two X groups between the first drive modules 31 of the direction; the third transmission module 33 is disposed on the second transmission module 32, the feeding mechanism 3 is configured to drive the clamping component 9 to move in a three-dimensional direction, and convey the battery to a specific position where a feeding area of the helium testing mechanism 2 is located, because the two sets of first transmission modules 31 in the X direction can drive the second transmission module 32 to move in the X direction, the second transmission module 32 can drive the third transmission module 33 to move in the Y direction, the third transmission module 33 drives the clamping component 9 to move in the vertical direction, and under cooperation between the modules, the clamping component 9 can move in the three-dimensional direction, so as to improve accuracy of a conveying position of the battery, in this embodiment, the clamping component 9 can be any one of a variable-distance clamping jaw or a gripper.
Further, referring to fig. 1 to 3, the helium detecting mechanism 2 includes: the device comprises a driving module 21, a positioning detection module and a vacuum box closing detection module, wherein the driving module 21 is arranged on the workbench 1 and is positioned on one side of the feeding mechanism 3; the positioning detection module is arranged on the driving module 21; vacuum box detection module that closes box sets up on workstation 1 and is located drive module 21's top, is equipped with three on drive module 21 and stops the position and be material loading district 211, detection zone 212, unloading district 213 respectively, material loading district 211, detection zone 212 and unloading district 213 set up for establishing ties, vacuum box detection module that closes box is located drive module 21's detection zone 212, and when location detection module moved to material loading district 211, the battery was got by the clamp on feed mechanism 3 and is got subassembly 9 and place on location detection module, then location detection module is under drive module 21's operation, moves to detection zone 212 for it is located and carries out the leakproofness of battery under the vacuum box detection module that closes box detection module and detects, detects the completion back, moves it to unloading district 213 by drive module 21, gets subassembly 9 to marking mechanism 6 on getting through the clamp on transfer mechanism 7.
Further, referring to fig. 3, the positioning detection module includes a fixing component 23, a placing component 24, a first lifting cylinder 26, and an optoelectronic switch 28, wherein the fixing component 23 is disposed on the driving module 21; the placing component 24 is arranged on the fixing component 23, and a plurality of cavities 27 for placing batteries are arranged in the placing component 24; a first lifting cylinder 26 is arranged between the fixing assembly 23 and the placing assembly 24 and used for lifting the placing assembly 24 to a state of sealing with the components at the vacuum box assembling detection module; correlation photoelectric switches 28 are arranged at four corners of fixed component 23, each corner is provided with two sets of correlation photoelectric switches 28 with different heights, and the correlation photoelectric switches 28 are used for detecting whether the battery inclines or not when being placed, the battery is placed in cavity 27 inside placed component 24, if the battery does not incline, the correlation light between the correlation photoelectric switches 28 at the top of the four corners is not blocked, the correlation of the correlation photoelectric switches 28 below the four corners is blocked, if the battery inclines, the correlation light between the correlation photoelectric switches 28 at the top of the four corners is blocked, and the battery is detected whether to incline or not by detecting, so as to ensure the sealing property between a helium injection sealing nozzle and the battery, so that the accuracy of battery detection is improved, when driving module 21 drives fixed component 23 to move to a vacuum box detection module, first lifting cylinder 26 drives placed component 24 to lift to be sealed with the vacuum box detection module, and the operation of helium detection is performed.
Further, referring to fig. 3 and 4, the vacuum box-closing detection module includes a placing frame 22, a hollow shaft cylinder 210, a helium injection sealing nozzle, and a vacuum pumping assembly 29, where the placing frame 22 is disposed on the workbench 1 and above the driving module 21; the hollow shaft cylinders 210 are arranged at the top of the placing frame 22, are arranged at intervals along the displacement direction of the driving module 21, and are communicated with the recovery mechanism 8; the helium injection sealing nozzle is arranged at the bottom of the hollow shaft cylinder 210 and is used for vacuumizing and injecting helium inside the battery; vacuumizing assembly 29, set up on rack 22 and lie in one side of hollow shaft cylinder 210, be used for placing the inside evacuation of subassembly 24, first lift cylinder 26 drives and places subassembly 24 and promote to take place sealed state with the bottom of rack 22, annotate in the helium sealed mouth extrusion battery liquid injection mouth, recovery mechanism 8 is earlier through hollow shaft cylinder 210 with the inside evacuation of battery, then annotate the helium into the battery, insert the cavity 27 that corresponds to place the battery through the bottom of vacuumizing assembly 29 simultaneously, vacuumize, in the testing process, because place the inside cavity of subassembly 24 and helium mass spectrum and pick up hourglass appearance intercommunication, if the battery has the hourglass, the inside helium of battery enters into cavity 27, can pick up hourglass appearance through helium mass spectrum and measure.
Further, referring to fig. 3, 5 and 6, the helium detecting mechanism 2 further comprises a helium injection nozzle cleaning mechanism 25, wherein the helium injection nozzle cleaning mechanism 25 is arranged at the top of the fixing component 23 and is located at one end far away from the feeding mechanism 3, and is used for cleaning a helium injection sealing nozzle; the helium nozzle cleaning mechanism comprises a fixing frame 251, a fixing plate 254, a second lifting cylinder 252, a mounting assembly 255, a driving assembly 253 and a brush assembly 256, wherein the fixing frame 251 is arranged at the top of the fixing assembly 23 and is positioned at one end far away from the feeding mechanism 3; the fixing plate 254 is disposed on the fixing frame 251; the second lifting cylinder 252 is disposed between the fixing frame 251 and the fixing plate 254, and is used for lifting the fixing plate 254; the mounting assembly 255 is rotatably disposed on the fixing plate 254, and the driving assembly 253 is disposed on the fixing plate 254 and rotatably connected to the mounting assembly 255 for driving the mounting assembly 255 to rotate circumferentially; brush subassembly 256 sets up on the installation component 255 inner wall, be used for the clearance to annotate the helium sealing nozzle, when drive module 21 drives and places subassembly 24 and move to material loading district 211 and carry out the material loading, mount 251 moves to the bottom of rack 22 this moment, be located detection zone 212, second lift cylinder 252 drives fixed plate 254 rebound, make the helium sealing nozzle is annotated to brush subassembly 256 cladding, drive subassembly 253 drives brush subassembly 256 through installation component 255 and rotates, will annotate the helium sealing nozzle and clear up before detecting the battery, in this embodiment, drive subassembly 253 can be the combination of motor and drive belt.
Further, referring to fig. 11, the transfer mechanism 7 includes a set of seventh transmission modules 71 in the Y direction and a set of eighth transmission modules 72 in the Z direction, the seventh transmission modules 71 are disposed on the workbench 1 and above one end of the blanking area 213 of the driving module 21; the eighth transmission module 72 is disposed on the seventh transmission module 71; transfer mechanism 7 is used for driving to press from both sides and gets the subassembly and remove in the three-dimensional direction, realize the battery transfer, seventh transmission module 71 can drive eighth transmission module 72 and move in the Y direction, eighth transmission module 72 drives to press from both sides and gets subassembly 9 and move in the Z direction, can transport the battery on the mechanism 2 is examined to the marking mechanism 6 to the multiunit helium, make helium examine mechanism 2 and marking mechanism 6 share same clamp and get subassembly 9, can integrate both on a station organically, can save the transition line body, it can be any one in displacement clamping jaw or the gripper to press from both sides subassembly 9 in this embodiment.
Further, referring to fig. 9, the marking mechanism includes a conveying module 61, a laser marking assembly, a mirror reflection photoelectric switch 65, a code scanning gun 62 and a positioning module 66, wherein the conveying module 61 is arranged on the workbench 1 and is parallel to the helium detecting mechanism 2; the laser marking assembly is arranged on the workbench 1 and positioned at the top of the conveying module 61; the mirror reflection photoelectric switch 65 is arranged at the head end and the tail end of the conveying module 61 and is used for feeding back the feeding position and the discharging position of the battery in the conveying module 61; the code scanning gun 62 is arranged on the conveying module 61 and is positioned on one side of the laser marking assembly; the positioning modules 66 are arranged on the workbench 1 and positioned at two sides of the conveying module 61, and are used for clamping the battery when the battery reaches the position below the laser marking assembly; the transfer mechanism 7 drives the clamping assembly 9 to move the battery from the blanking area 213 of the helium detection mechanism 2 to the conveying module 61, the specular reflection photoelectric switch 65 at the head end of the conveying module 61 can detect whether the battery is placed on the conveying module 61, when the battery is moved to the bottom of the laser marking assembly by the conveying module 61, the battery is subjected to laser marking, meanwhile, the positioning module 66 clamps the battery at the bottom of the laser marking assembly, on one hand, the stability of the battery at a high beat is improved, on the other hand, the positioning accuracy is improved, the marking position of the battery is ensured to be consistent, after the battery is marked, the code scanning gun 62 can scan a code carved by the laser marking assembly through the position of the code scanning gun 62, so as to find out an unqualified product, when the specular reflection photoelectric switch 65 conveyed to the tail end of the battery is flush, the specular reflection photoelectric switch 65 can feed back whether the battery on the conveying module 61, in the embodiment, referring to fig. 10, the positioning module comprises a base 661, a clamping assembly 662, two groups of driving cylinders 663 and clamping cylinders, the base 661 is arranged below the conveying module 61, and two ends of the base 661 extend out of the conveying module 61; the clamping assemblies 662 are arranged at two ends of the base 661 and are positioned at two sides of the conveying module 61; two sets of actuating cylinders 663 set up respectively in base 661 both sides lateral wall, two sets of actuating cylinders 663's piston rod is connected in the centre gripping subassembly 662 at base 661 both ends respectively, be used for driving centre gripping subassembly 662 and restrict the degree of freedom of battery in the perpendicular to streamline direction, die clamping cylinder sets up respectively at centre gripping subassembly 662 top, be used for driving the anchor clamps on the centre gripping subassembly 662 and restrict the degree of freedom of battery in the streamline direction, when the battery removes to the laser marking subassembly bottom, actuating cylinders 663 drives centre gripping subassembly 662 and removes to the direction that is close to each other, restrict the degree of freedom of battery in the streamline direction, then die clamping cylinder drives anchor clamps and removes to the direction that is close to each other, restrict the degree of freedom of battery in the streamline direction, carry out spacing fixed with the battery, on the one hand improve the stability of battery under the high beat, on the other hand improves the accuracy of location, ensure that the mark position of battery is unanimous.
Further, referring to fig. 9, the laser marking assembly includes a lifting module 64 and a laser generator 63, the lifting module 64 is disposed on the working platform 1 and located at one side of the conveying module 61, and is used for adjusting the height of the laser generator 63; the height of laser generator 63 can be adjusted to lift module 64, is applicable to the battery of different models and beats the mark, and laser generator 63 is located NG stretching strap 5's top, and laser generator 63 dodges the structure from top to bottom with NG stretching strap 5 adoption, saves space to in the helium examine mechanism 2 parallel, make NG stretching strap 5's length increase, can buffer memory more substandard product batteries.
Further, referring to fig. 1-2, the recovery mechanism 8 includes an air compressor 81, a high-pressure tank 82, a low-pressure tank 85, a helium tank 83, and a nitrogen tank 84, the air compressor 81 being disposed in a cavity on one side of the table 1; the high-pressure tank 82 is arranged at one side of the air compressor 81, is used for storing helium with a certain concentration, can provide helium for the interior of the battery, and is connected with the hollow shaft cylinder 210 through a pipeline; the low-pressure tank 85 is arranged below the air compressor 81 and is used for primarily storing helium recovered inside the battery and adjusting the concentration of the helium recovered in the tank through high-concentration helium supplied by the helium tank 83; the helium tank 83 is arranged on one side of the air compressor 81 and used for injecting helium into the low-pressure tank 85 to adjust the concentration of the recovered helium; the nitrogen gas tank 84 is arranged at one side of the air compressor 81, is communicated with the vacuumizing assembly 29 and is used for removing residual helium gas in the cavity 27 for placing the assembly 24, when the helium gas is recovered, firstly, the helium gas in the battery flows into the low-pressure tank 85 through self pressure difference, then, the residual helium gas in the battery is pumped into the low-pressure tank 85 through the vacuum pump, the helium gas in the low-pressure tank 85 enters the high-pressure tank 82 through the air compressor 81, when the helium gas needs to be injected, the helium gas tank 83 injects high-concentration helium gas into the low-pressure tank 85, then, the helium gas is blown into the high-pressure tank 82 through the air compressor 81, the high-pressure tank 82 is added into the battery through the hollow shaft air cylinder 210, the nitrogen gas tank 84 is connected with the vacuumizing assembly 29 and is used for removing the residual helium gas in the cavity 27 for placing the assembly 24, the residual helium gas in the cavity 27 is prevented from influencing the detection result, and the detection accuracy is improved
Further, referring to fig. 8, the blanking mechanism 4 includes a set of fourth transmission modules 41 in the Y direction, a set of fifth transmission modules 42 in the X direction, and a set of sixth transmission modules 43 in the Z direction, and the fourth transmission modules 41 are disposed on the workbench 1; the fifth transmission module 42 is disposed on the fourth transmission module 41; the sixth transmission module 43 is disposed on the fifth transmission module 42, the fourth transmission module 41 drives the fifth transmission module 42 to move in the Y direction, and the sixth transmission module 43 drives the fifth transmission module 42 to move in the Z direction, so that the clamping assembly 9 can move in the three-dimensional direction to convey the battery to the material conveying line 10, in this embodiment, the clamping assembly 9 may be any one of a variable-pitch clamping jaw or a mechanical jaw.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, numerous simple variants are possible, comprising the combination of the individual specific technical features in any suitable manner. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should also be considered as disclosed in the present invention, and all such modifications and combinations are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a square-shell battery helium test system which characterized in that includes:
a table having a cavity;
the material conveying line is arranged on one side of the workbench and used for conveying the workpiece to be detected;
the code scanning mechanism is arranged on the side edge of the material conveying line;
the feeding mechanism is arranged on the workbench and positioned above the material conveying line and used for transferring the workpiece to the helium detection mechanism;
the helium detection mechanisms are arranged on the workbench and positioned at one end of the feeding mechanism and are used for detecting the sealing performance of the battery after full welding;
the transfer mechanism is arranged at one end of the helium detection mechanism, which is far away from the feeding mechanism, is positioned above one end of the helium detection mechanism, and is used for transferring the helium-detected workpiece to a line body of the marking mechanism;
the marking mechanism is arranged on one side of the feeding mechanism, is parallel to the helium detection mechanism, and is used for marking codes on the top cover of the battery and recording information;
the recycling mechanism is arranged on one side of the transfer mechanism, which is far away from the helium detection mechanism, and is used for supplying and recycling the helium gas in the helium detection mechanism;
and the blanking mechanism is arranged at one end of the feeding mechanism and is positioned above the material conveying line.
2. The square-shelled battery helium testing system according to claim 1, characterized in that: the system further comprises:
the clamping components are respectively arranged on the feeding mechanism, the transfer mechanism and the discharging mechanism;
and the NG pull belt is arranged on the workbench, is parallel to the marking mechanism and is used for caching defective batteries.
3. The square-shelled battery helium testing system according to claim 2, characterized in that: the feed mechanism includes:
the two groups of first transmission modules in the X direction are arranged on the workbench;
the second transmission modules in the Y direction are arranged between the first transmission modules in the two groups of X directions;
the third transmission module in the Z direction is arranged on the second transmission module;
the feeding mechanism is used for driving the clamping assembly to move in the three-dimensional direction and conveying the battery to a specific position of the helium detection mechanism.
4. The helium testing system for square-shelled batteries according to claim 1, characterized in that: the helium detection mechanism comprises:
the driving module is arranged on the workbench and is positioned at one end of the feeding mechanism;
the positioning detection module is arranged on the driving module;
the vacuum box closing detection module is arranged on the workbench and is positioned above the driving module;
the positioning detection module includes:
the fixing component is arranged on the driving module;
the placing component is arranged on the fixing component, and a plurality of cavities for placing batteries are arranged in the placing component;
the first lifting cylinder is arranged between the fixing assembly and the placing assembly and used for lifting the placing assembly to a state that a part at the position where the placing assembly is combined with the vacuum box and the detection module is sealed;
the correlation photoelectric switches are arranged at four corners of the fixed component, and each corner is provided with two groups of correlation photoelectric switches with different heights for detecting whether the battery is inclined or not when placed;
the driving module is provided with three stop positions which are a feeding area, a detection area and a discharging area respectively, the feeding area, the helium detection area and the discharging area are arranged in series, and the vacuum box assembling detection module is located in the detection area of the driving module;
the vacuum box assembling detection module comprises:
the placing frame is arranged on the workbench and is positioned above the driving module;
the hollow shaft cylinders are arranged at the top of the placing frame, are arranged at intervals along the displacement direction of the driving module and are communicated with the recovery mechanism;
the helium injection sealing nozzle is arranged at the bottom of the hollow shaft and is used for vacuumizing and injecting helium inside the battery;
and the vacuumizing assembly is arranged on the placing frame and positioned on one side of the hollow shaft cylinder and used for placing the inside of the assembly for vacuumizing.
5. The square-shelled battery helium testing system according to claim 4, characterized in that: the helium detection mechanism further comprises:
the helium filling nozzle cleaning mechanism is arranged at the top of the fixing component and positioned at one end far away from the feeding mechanism and is used for cleaning the helium filling sealing nozzle;
annotate helium nozzle cleaning mechanism includes:
the fixed frame is arranged at the top of the fixed component and is positioned at one end far away from the feeding mechanism;
the fixing plate is arranged on the fixing frame;
the second lifting cylinder is arranged between the fixed frame and the fixed plate and used for lifting the fixed plate;
the mounting component is rotationally arranged on the fixed plate,
the driving assembly is arranged on the fixing plate, is rotatably connected with the mounting assembly and is used for driving the mounting assembly to rotate circumferentially;
and the brush component is arranged on the inner wall of the mounting component and used for cleaning the helium filling sealing nozzle.
6. The square-shelled battery helium testing system according to claim 2, characterized in that: the transfer mechanism comprises:
the seventh transmission module in the Y direction is arranged on the workbench and is positioned above one end of the blanking position of the driving module;
the eighth transmission module in the Z direction is arranged on the seventh transmission module;
the transfer mechanism is used for driving the clamping assembly to move in the three-dimensional direction, so that transfer of the battery is realized.
7. The square-shelled battery helium testing system according to claim 1, characterized in that: the marking mechanism includes:
the conveying module is arranged on the workbench and is parallel to the helium detection mechanism;
the laser marking assembly is arranged on the workbench and positioned at the top of the conveying module;
the mirror reflection photoelectric switch is arranged at the head end and the tail end of the conveying module and used for feeding back the feeding position and the discharging position of the battery in the conveying module;
the code scanning gun is arranged on the conveying module and is positioned on one side of the laser marking assembly;
the positioning module is arranged on the workbench, positioned on two sides of the conveying module and used for clamping the battery when the battery reaches the position below the laser marking assembly;
the positioning module includes:
the base is arranged below the conveying module, and two ends of the base extend out of the bottom of the conveying module;
the clamping assemblies are arranged at the two ends of the base and are positioned at the two sides of the conveying module;
the two groups of driving cylinders are respectively arranged on the side walls of the two sides of the base, and piston rods of the two groups of driving cylinders are respectively connected with the clamping components at the two ends of the base and are used for driving the clamping components to limit the degree of freedom of the battery in the direction vertical to the streamline;
and the clamping cylinders are respectively arranged at the tops of the clamping assemblies and used for driving the clamps on the clamping assemblies to limit the freedom degree of the batteries in the flow line direction.
8. The helium testing system for square-shelled batteries according to claim 7, characterized in that: the laser marking assembly includes:
the lifting module is arranged on the workbench, is positioned on one side of the conveying module and is used for adjusting the height of the laser generator;
and the laser generator is arranged on the lifting module and is positioned above the NG pull belt.
9. The square-shelled battery helium testing system according to claim 4, characterized in that: the recovery mechanism includes:
the air compressor is arranged in the cavity on one side of the workbench;
the high-pressure tank is arranged at one side of the air compressor, is used for storing helium with certain concentration, can provide the helium for the interior of the battery, and is connected with the hollow shaft cylinder through a pipeline;
the low-pressure tank is arranged below the air compressor and is used for primarily storing helium recovered from the interior of the battery;
the helium tank is arranged on one side of the air compressor and is used for injecting helium into the low-pressure tank to adjust the concentration of the recovered helium;
and the nitrogen tank is arranged on one side of the air compressor, communicated with the vacuumizing assembly and used for removing residual helium in the cavity for placing the assembly.
10. The helium testing system for square-shelled batteries according to claim 2, characterized in that: the unloading mechanism includes:
the fourth transmission module in the Y direction is arranged on the workbench;
a group of fifth transmission modules in the X direction, which are arranged on the fourth transmission modules;
the sixth transmission module in the Z direction is arranged on the fifth transmission module;
the blanking mechanism is used for driving the clamping assembly to move in the three-dimensional direction to convey the battery to the material conveying line or the NG pulling belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210764631.5A CN115144133A (en) | 2022-06-29 | 2022-06-29 | Helium detection system for square-shell battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210764631.5A CN115144133A (en) | 2022-06-29 | 2022-06-29 | Helium detection system for square-shell battery |
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| Publication Number | Publication Date |
|---|---|
| CN115144133A true CN115144133A (en) | 2022-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210764631.5A Pending CN115144133A (en) | 2022-06-29 | 2022-06-29 | Helium detection system for square-shell battery |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115683466A (en) * | 2023-01-03 | 2023-02-03 | 湖南隆深氢能科技有限公司 | Hydrogen detection device |
| CN115791027A (en) * | 2022-12-28 | 2023-03-14 | 中山市宏唯自动化科技有限公司 | Cylindrical battery leakage detection tool |
| CN118566773A (en) * | 2024-08-01 | 2024-08-30 | 常州能动新能源科技有限公司 | Detection device of miniature power supply module |
-
2022
- 2022-06-29 CN CN202210764631.5A patent/CN115144133A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115791027A (en) * | 2022-12-28 | 2023-03-14 | 中山市宏唯自动化科技有限公司 | Cylindrical battery leakage detection tool |
| CN115791027B (en) * | 2022-12-28 | 2023-10-20 | 中山市宏唯自动化科技有限公司 | Cylinder battery leak hunting frock |
| CN115683466A (en) * | 2023-01-03 | 2023-02-03 | 湖南隆深氢能科技有限公司 | Hydrogen detection device |
| CN118566773A (en) * | 2024-08-01 | 2024-08-30 | 常州能动新能源科技有限公司 | Detection device of miniature power supply module |
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