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Pre-welding cutting machine

1. Equipment Overview


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This equipment is used for pre-welding electrode tabs of cylindrical battery cells after winding/stacking, cutting the tabs, and testing for short circuits.

2. Equipment Process Flowchart

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3. Technical Specifications

3.1 Equipment Dimensions

Length (L)Width (W)Height (H)
1200mm1000mm2200mm

3.2 Ultrasonic Pre-welding

Specifications:

No.NameParameter
1Substrate (Positive/Negative Electrode Foil) MaterialAluminum foil, copper foil
2Substrate (Positive/Negative Electrode Foil) Thickness0.006-0.020mm
3Shim (Positive/Negative Electrode Tab) MaterialAluminum tab, nickel tab, copper-plated nickel tab
4Shim (Positive/Negative Electrode Tab) Thickness0.1-0.3mm
5Maximum Number of Layers10-120 layers
6Electrode Tab Welding MethodHorizontal/Vertical, to be determined before ordering
7Weld Length33mm
8Weld Width3mm
9Weld Depth0.1-0.6mm
10Welding TimeWithin 1 second
11Number of Rows of Weld Points2 rows
12Pressure0.1MPa~1MPa, adjustable
13Time Adjustment Range0.2~0.8/s, adjustable up to 60 seconds
14Welding Surface Life≥100,000 times
15Welding Head MaterialImported high-speed steel
16Weld Point Height1mm
17Weld Point/Pattern Distribution StatusUpper welding head straight pattern or V-pattern; lower mold mesh pattern
18Distance from Welding Surface to Welding Head>5mm
19Length of Welding Head≤35mm
20Available Welding Surface per Welding Head2 surfaces
21Size of Individual Weld Point1mm x 1mm
22Installation Direction of Welding HeadHorizontal
23Adjustable Amplitude RangeSemi-cycle 20-40um
24Frequency Difference between Transducers≤400Hz
25Impedance Difference between Transducers≤4Ω
26Capacitance Difference between Transducers≤400PF
27Insulation Resistance between Transducer and Shell≥30MΩ
28Power Tolerance8000W+ (peak)
29Welding Tensile Strength≥300N
30Frequency Control MethodBuilt-in adjustable frequency
31Constant Amplitude FunctionSwitching power supply constant voltage constant current (constant amplitude)
32Stepless Amplitude AdjustmentStepless adjustment
33Ultrasonic Frequency20KHz
34AppearanceNo virtual welding, weld penetration, missed joints; firm welding, layered penetration
35Design Service Life of Equipment8-10 years
36WeightApproximately 60kg
37Generator SizeApproximately 520×410×170mm (L×W×H)
38Head SizeApproximately 480×200×480mm (L×W×H)
39Efficiency8000W

3.4 Cutting Section Components

No.NameParameter
1CylinderYadake
2CutterSKD11
3Guide PostMold guide post
4Safety ProtectionTransparent acrylic

3.5 Yangzi Short Circuit Tester

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4. Main Components of Equipment

No.Unit NameQuantityNotes
1Ultrasonic Welding Machine1 set6000W
2Cutter1 setEffective length 160mm
3Tester1 unitDigital display screen Yangzi
4Mobile Platform1 setSlide + platform
5Electrical Control Unit1 setYenke
6Frame1 setFangtong + aluminum profile

Ultrasonic Pre-welder

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Pre-weld multiple layers of positive and negative electrode tabs of wound battery cells together.

Cutter

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The cutter is made of SDK11 material, heat-treated, straightened, with a precision ground flatness of ±0.005mm.

Short Circuit Testerimage.pngThe tester measures the insulation resistance of the positive and negative electrode tabs of the battery cell to ensure it meets process requirements.

5. Major Component Brands and Spare Parts List

Major Component Brands

No.NameBrandRemarks
1PLC (CPU)Panasonic / XinjeJapan / Domestic
2Touch ScreenWeintek / XinjeChina
3Pneumatic ComponentsAIRTACChina
4Low-voltage ElectricalsChintChina
5AC ContactorsChintChina
6UltrasonicYenkeChina
7CutterCustomChina
8TesterYangziChina

Note: Equivalent brands will be used if special circumstances arise.

Spare Parts List

No.NameSpecificationsQuantityRemarks
1Sensor1 piece/unitYadake
2Jigs & Fixtures2 piecesDomesticCustomized

6. Random Tools List

No.NameSpecificationsQuantityRemarks
1Hexagon Wrench1.5-101 set
2Open-end Wrench8mm-10mm1 piece
3Open-end Wrench10mm-12mm1 piece
4Ratchet Wrench250mm1 piece
5Cross Screwdriver6*150mm1 piece
6ToolboxZS-430 double layer1 piece

7. Equipment Infrastructure Requirements

No.ItemContent
1DimensionsEquipment approximately 1200mm (L) x 1000mm (W) x 2200mm (H) (excluding operating space)
2Power RequirementsSingle-phase AC 220V±10%, 50Hz, earth line: protective grounding;Equipment installation power: 1.5KW, main power supply quantity: 1
3Compressed AirCompressed air pressure: ≥0.6MPa, pressure fluctuation ±1% (clean air after water, oil, filtration, and stabilization);Compressed air consumption: 10m³/h, interface quantity: 1/unit;Interface air pipe specifications: Φ10mm
4Environmental RequirementsAmbient temperature: Coating section 25±5℃ (according to buyer's process requirements);Relative humidity: 10%~30%RCH (according to buyer's process requirements);Cleanliness: Class 100,000 (according to buyer's process requirements)
5Ground RequirementsEquipment total weight: approximately 0.4 tons;Cement or terrazzo floor, flatness ±5mm/㎡, bearing capacity ≥350kg/㎡.


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