由 Yaming 
1. Introduction to Bicycle Production Line
The bicycle assembly line is an automated system for large – scale manufacturing. It follows the core process: core frame processing → integrated component assembly → vehicle inspection & debugging → finished product packaging.
Through equipment collaboration and standardized operations, it transforms raw materials into finished bikes efficiently. It supports production of various bicycles (mountain bikes, road bikes, urban commuters).
2. Core Processing Links of the Frame
This link focuses on precision forming and surface treatment of the bicycle frame (key for strength and durability).
Step 1: CNC Bending
Based on frame type (e.g., mountain bike suspension frames, road bike lightweight frames), CNC pipe benders bend steel/aluminum alloy pipes to a preset arc. Error is controlled within ±0.2 mm.Step 2: Automated Welding
Use argon arc welding to strengthen frame joints. Welding points undergo flaw detection to avoid false/missing welds.Step 3: Polishing & Coating
Automated polishing treats welds (removes burrs). Frames then go through phosphating (anti – rust) and electrostatic spraying (primer + topcoat, multi – color customization supported). High – temperature curing ensures coating adhesion.Final: Tracking & Transport
Processed frames are scanned (marked with model/batch) and transported to assembly via conveyor lines. Minimal manual intervention ensures consistency in accuracy and appearance.
3. Component Integration and Assembly Process
The assembly process uses a “workstation streamlining + intelligent assistance” model, following: frame pre – assembly → core component assembly → detail improvement.
Frame Pre – assembly
Conveyor lines move frames to workstations. Front forks/handlebars are installed first. Workers use positioning clamps to ensure verticality of handlebars/front forks.Core Component Assembly
AGVs distribute wheel sets, chains, braking systems. Automated rim adjustment corrects spoke tension for smooth wheel rotation. Workers install transmissions/brakes (with torque wrenches, torque values meet model standards—e.g., mountain bike brake handle torque: 5 – 8N·m).Detail Improvement
Final stations install seats, pedals, and reflective parts. System scanning confirms each process (prevents wrong/missing installation—e.g., road bike/mountain bike transmission kits are not mixed) to ensure component matching accuracy.
4. Vehicle Inspection and Debugging
Multiple professional stations verify safety and performance to meet national standards.
Appearance Inspection
Check frame coating for scratches and part installation flatness.Dynamic Riding Test
Simulate riding conditions on a dynamic platform: test braking effect (dry road braking distance ≤5 meters), transmission shifting smoothness, and wheel yaw (≤1 mm).Static Ergonomic Test
Verify handlebar height, seat adjustment range (ergonomic compliance), and screw tightness.Power – on Test (for e – bikes)
Verify motor stability, battery life, and control system functions.
Unqualified products are diverted to maintenance (e.g., stuck gears → re – adjust transmission). Qualified bikes enter packaging. Test data is archived for traceability.
5. Finished Product Packaging and Warehousing
This link connects packaging and warehousing to reduce transportation losses.
- Automated PackagingQualified bikes are wrapped in dust film (automated film – coating). Custom cartons (with foam corner protectors) protect frames/wheel sets. Automated equipment seals cartons and pastes labels (model, batch, production info for traceability).
Smart Warehousing
AGVs transport bikes to smart storage areas (stored by model—e.g., mountain bikes/road bikes separated). The system updates inventory data in real time for production – warehousing collaboration.
6. Core Advantages of the Production Line
Efficiency + Precision
Core processes (frame bending, welding, wheel set adjustment) have an automation rate >75%. A single line produces 300 – 500 units daily. Precision equipment controls errors to ensure safety and performance.Flexible Production
Supports mixed – line production (mountain bikes, road bikes, commuters). Model changes take ≤1.5 hours (via quick mold replacement and station parameter adjustment) to respond to market orders.Intelligent Management
IoT collects real – time data (e.g., frame welding pass rate, inspection defect rate). The system visualizes production capacity and equipment status. Each bike has a unique traceability code (traces to production stations/operators for quality control).
Bicycle production line