Here is the detailed assembly process of a two-wheeled scooter, incorporating the chassis pre-assembly line, final assembly line, inspection line, and component transportation line:
1. Preliminary Preparations
- Component Preparation: Gather all the necessary components such as the chassis, motor, battery, controller, wheels, dashboard, lights, brakes, and mirrors. Conduct a quality check on each part to ensure they are in good working condition.
- Tool Preparation: Have tools like wrenches, screwdrivers, welding equipment, insulating tape, and multimeters ready.
- Work Environment Preparation: Ensure the working environment is safe, free from fire hazards and high temperatures.
2. Chassis Pre-assembly Line
- Chassis Welding and Grinding: On the chassis pre-assembly line, weld the various parts of the chassis according to the design drawings. Then, grind the welding points to ensure the chassis is structurally sound and has a smooth surface.
- Installation of the Front Fork: Attach the front fork to the front end of the chassis.
- Pre-assembly of Components: On the chassis pre-assembly line, complete the pre-assembly of components such as the chassis wiring.
3. Final Assembly Line
- Motor and Battery Installation: On the final assembly line, secure the motor to the chassis to ensure a firm connection between the motor and the chassis. Place the battery in the battery box within the chassis and fix it in place.
- Controller and Sensor Assembly: Install the controller at the designated position on the chassis and connect the relevant wiring. Install speed sensors, battery level sensors, and other sensors to monitor various states of the scooter.
- Wheel and Seat Installation: Attach the wheels to the chassis to ensure they are securely installed. Conduct a dynamic balance test on the wheels to ensure smooth riding. Install the seat, considering comfort and aesthetics.
- Wiring Harness Assembly: According to the design drawings, route the wiring harness to ensure neat and tidy wiring. Connect the wires between the battery, motor, and controller to ensure proper electrical connections.
- Shell and Other Component Installation: Install the scooter shell onto the chassis, taking care to handle plastic parts gently to avoid damage. Attach small components such as lights and dashboard, paying attention to proper slot alignment.
4. Component Transportation Line
- Component Transportation: Use a basket-style overhead conveyor line to transport components to various assembly stations.
5. Inspection Line
- Function Testing: On the inspection line, conduct function tests on the scooter's motor performance, braking system, lights, and dashboard.
- Performance Testing: Test the scooter's speedometer, braking force, axle weight, and other performance parameters.
- Safety Inspection: Perform safety inspections on the electric drive system and high-voltage electrical system of the scooter.
6. Final Inspection and Adjustment
- Final Inspection: Conduct a final inspection of the scooter to ensure all components are functioning properly.
- Adjustment: Based on the test results, adjust the scooter's performance to ensure it meets the design requirements.
7. Packaging and Warehousing
- Packaging: Package the assembled scooter to protect it from damage during transportation.
- Warehousing: Store the packaged scooter in the warehouse, awaiting shipment.
By following this process and incorporating the specified lines, the assembly of two-wheeled scooters can be efficiently and reliably carried out to produce products that meet quality standards.
