1. MACCHINAZIONE PRE-CNC: Design and Preparation for Electric Curtain Prototypes
Before initiating MACCHING CNC for the electric curtain prototype, a systematic design and preparation stage is critical to meet functional, strutturale, and user experience requirements. Questa fase segue una sequenza lineare, con dettagli chiave organizzati nella tabella seguente.
| Passaggio di progettazione | Requisiti chiave | Materiali consigliati |
| Analisi della domanda del prodotto | Funzioni core: Smooth curtain opening/closing (speed 5-10cm/s), forward/reverse rotation, limit position control; Requisiti strutturali: Track load-bearing capacity (≥2kg), drive mechanism torque (≥0.5N·m), curtain body compatibility (cloth/PVC soft curtain); Aspetto: Hidden screws, matte track surface (reduces light reflection); Reserve space for motor, gear set, PCB control module, and power interface (DC 12V). | – |
| 3D Modellazione & Design strutturale | Usa il software CAD (Solidworks, E nx) to create 3D models with precision (tolleranza ± 0,05 mm); Design components: track (straight/curved), motor mount, gear box, curtain fixing clips, and control box; Optimize track inner teeth (module 0.5-1, tooth pitch accuracy ±0.02mm) for smooth meshing; Add stiffeners to track (thickness 1.5-2mm) to avoid deformation under load. | – |
| Selezione del materiale | Choose materials based on component function, machinabilità, e durata, while matching mass production standards. | Track/Gear Box: Lega di alluminio 6061/6063 (leggero, resistente all'usura, spessore 2-3 mm); Motor Mount/Control Box: ABS/PC alloy (basso costo, isolamento, thickness 1.5-2mm); Marcia: Copper/steel (Alta coppia, resistente all'usura) or POM plastic (basso attrito, low noise); Curtain Fixing Clips: Nylon (leggero, resistente alla corrosione). |
| Pretrattamento dei materiali | Tagliare le materie prime in spazi vuoti (lasciare un margine di lavorazione di 0,5-1 mm): Lega di alluminio tramite sega a nastro, ABS/POM via laser cutting; Ricottura della lega di alluminio (300-350° C per 1-2 ore) Per ridurre lo stress interno; Dry ABS/POM (80-100° C per 2-3 ore) per rimuovere l'umidità (prevents machining bubbles); Clean all blanks with alcohol to remove oil and dust. | – |
2. CNC Machining Preparation for Electric Curtain Prototypes
Adequate preparation before formal machining ensures efficiency and precision in MACCHING CNC for electric curtain prototypes. This section covers tool selection, programmazione, and fixture design.
2.1 Selezione di materiale e strumento
The choice of materials and tools directly affects machining quality and efficiency. La tabella seguente fornisce raccomandazioni dettagliate:
| Categoria | Opzioni specifiche | Scenari di applicazione |
| Structural Materials | Lega di alluminio 6061 piatto (2-3mm), ABS/PC plate (1.5-2mm), POM rod (diameter 8-12mm) | Aluminum alloy for tracks/gear boxes (load-bearing); ABS/PC for control boxes (isolamento); POM for gears (basso attrito). |
| Transmission Materials | Copper rod (diameter 5-8mm), steel sheet (1-1.5mm) | Copper for high-torque gears; steel for gear shafts (resistente all'usura). |
| Strumenti di lavorazione grezza | Φ8-12mm flat-bottom cutter (aluminum alloy/ABS), Φ6-8mm flat-bottom cutter (Pom) | Quick material removal for large components (tracks, control boxes). |
| Strumenti di finitura | Φ2-4mm ball-head cutter (track inner teeth), Φ1-2mm root-clearing cutter (gear grooves), Φ3-5mm drill bit (buchi di montaggio) | Ensure precise details (track teeth, gear profiles) e superfici lisce (Ra0.8-Ra3.2). |
| Special Tools | M3-M5 taps (fori filettati), gear milling cutter (module 0.5-1), thread milling cutter (Grandi buchi) | Process assembly threads and gear teeth (ensure meshing accuracy). |
2.2 Programmazione e design del dispositivo
Scientific programming and stable fixtures prevent machining errors and ensure precision.
| Collegamento | Operazioni chiave | Scopo & Effetto |
| Programmazione di cam | – MACCHINAZIONE DELLAZE SUB: First process track outer contour, then inner teeth; Machine gear box cavity before assembling with gears to avoid interference.- Taglio a strati: Set roughing depth 0.5mm (aluminum alloy/ABS) or 0.2mm (Pom); finishing depth 0.1-0.2mm.- Spiral interpolation: Use for track inner teeth (ensures tooth profile accuracy ±0.02mm) and gear grooves. | Improve efficiency; ensure dimensional accuracy (± 0,05 mm) and smooth gear meshing. |
| Design del dispositivo | – Aluminum alloy tracks: Use precision clamps with rubber pads (prevent deformation); for long tracks (≥1m), use multi-point support fixtures.- Gears/POM parts: Use vacuum adsorption platform (anche la pressione, no damage); for small gears, use custom jigs for synchronous clamping.- Alberi di ingranaggio: Use three-jaw chuck for turning (ensure coaxiality ≤0.03mm). | Maintain workpiece stability; avoid surface damage and dimensional deviation. |
3. Core CNC Machining Process for Electric Curtain Prototypes
Il formale Processo di lavorazione CNC transforms design models into physical parts, with strict control over each step to ensure functionality and durability.
3.1 Machine componente principale
Different components require targeted machining steps, as detailed below:
| Componente | Passi di sgarcioni | Passi di finitura |
| Track (Lega di alluminio) | 1. Mill outer contour (length 1000-1500mm, width 20-30mm, Conservare l'indennità di 0,5 mm);2. Mill inner cavity (depth 10-15mm) for gear movement;3. Drill mounting holes (Φ4mm, spacing 200mm) on track sides. | 1. Machine inner teeth (module 0.8, tooth depth 2mm) via spiral interpolation;2. Chamfer track edges (C0.5mm) to avoid sharpness;3. Polish inner cavity walls (Ra1.6) for smooth gear movement. |
| Gear Box (ABS/PC) | 1. Mill outer shape (80×50×30mm, Conservare l'indennità di 0,5 mm);2. Mill motor mounting hole (Φ20mm) and gear cavity (matches gear size);3. Cut wire slots (width 3mm) for control module wiring. | 1. Smooth cavity walls (Ra3.2) to reduce gear friction;2. Tap M3 threaded holes (for motor fixation);3. Deburr wire slots to prevent cable damage. |
| Gear (POM/Copper) | 1. Turn rod into cylindrical blank (diameter matches gear outer diameter, retain 0.3mm allowance);2. Mill gear blank thickness (5-8mm);3. Rough mill gear teeth (module 0.5-1, leave 0.1mm finishing allowance). | 1. Finish mill gear teeth (tooth profile accuracy ±0.02mm);2. Polish gear surface (Ra0.8) to reduce noise;3. Machine keyway (width 2mm) for shaft connection. |
| Control Box (Addominali) | 1. Mill box shape (100×60×40mm, Conservare l'indennità di 0,5 mm);2. Mill PCB cavity (depth 8-10mm) and power interface cutout (DC 12V size);3. Drill button holes (Φ5mm) for control switches. | 1. Smooth cavity walls (Ra3.2);2. Chamfer button holes (C0.3mm) for easy switch installation;3. Tap M3 threaded holes (for box cover assembly). |
3.2 Macchinatura dei dettagli chiave
Critical details directly affect the prototype’s functionality and user experience:
- Track Inner Teeth Machining: Use gear milling cutter with spiral interpolation to ensure tooth pitch accuracy (± 0,02 mm) and meshing clearance (0.1-0.2mm); Test with gear blank to avoid jamming.
- Motor Mount Machining: Machine positioning stop (height 3mm) on gear box to ensure motor shaft and gear coaxiality (≤0.03mm); Drill fixing holes (Φ3mm) around the stop for stable motor installation.
- Curtain Fixing Slot Machining: Mill T-shaped slot (width 5mm, depth 3mm) on track bottom for curtain clips; Chamfer slot edges (C0.2mm) to avoid damaging curtain fabric.
- Limit Switch Hole Machining: Drill Φ6mm holes at track two ends for limit switches; Ensure hole position accuracy (± 0,1 mm) to trigger stop function when curtain reaches the end.
3.3 Ispezione della qualità della lavorazione
Conduct in-process checks to ensure quality:
- Ispezione dimensionale: Use digital calipers (track length, gear outer diameter, tolleranza ± 0,05 mm) and coordinate measuring machine (CMM) (track teeth, gear profile, tolleranza ± 0,02 mm).
- Surface Quality Check: Use surface roughness meter (Ra0.8-Ra3.2 for moving parts like gears/tracks, Ra3.2-Ra6.3 for fixed parts like control boxes); Controlla i graffi (no visible scratches >0.5mm) and burrs.
- Test di adattamento: Assemble gear and track (test meshing smoothness, no jamming); Install motor on gear box (verify shaft coaxiality, no vibration); Test curtain clip insertion into track slot (facile da installare, no falling off).
4. Post-Processing and Assembly of Electric Curtain Prototypes
Post-processing enhances performance and durability, while precise assembly ensures functionality.
4.1 Trattamento superficiale
Different materials require targeted treatment to meet design goals:
| Materiale | Metodo di trattamento superficiale | Scopo & Effetto |
| Lega di alluminio (Track/Gear Box) | Anodizzazione (nero/argento) + Sabbiatura | Anodization improves corrosion resistance (salt spray test ≥48 hours); sandblasting creates matte finish (reduces light reflection and fingerprint adhesion). |
| ABS/PC (Control Box/Gear Box) | Pittura (matte white/gray) + Silk Screen | Painting matches home decor; silk screen prints brand logos and interface labels (PER ESEMPIO., “Energia”, “Limit Switch”). |
| POM/Copper Gears | Rivestimento di petrolio (food-grade lubricant) | Riduce l'attrito (estende la vita di marcia da 30%) and operating noise (≤50dB). |
| Steel Gear Shafts | Placcatura cromata | Migliora la resistenza all'usura (avoids rust in humid environments). |
4.2 Assembly and Functional Testing
Scientific assembly and strict testing ensure the prototype meets requirements.
4.2.1 Processo di assemblaggio
Follow this sequence to avoid errors:
- Pre-Assembly Check: Inspect all parts for defects (Nessun graffio, dimensional deviation ≤0.05mm); Prepare auxiliary materials (lubricating oil, viti, fili, curtain fabric/PVC sheet).
- Component Installation:
- Drive Mechanism Assembly: Install gear on motor shaft (use keyway for fixation); Mount motor and gear into gear box (fasten with M3 screws, torque 0.8-1N·m); Apply lubricating oil to gear teeth.
- Track Assembly: Connect gear box to track (ensure gear meshes with track inner teeth); Install limit switches at track ends (wire to control module); Fix track to wall brackets (spacing 500mm for stability).
- Control System Assembly: Install PCB module in control box (fasten with M2 screws); Connect motor, limit switches, and power interface to PCB; Close control box cover (snap-fit or screw fixation).
- Curtain Installation: Attach curtain clips to fabric/PVC sheet; Insert clips into track T-slot (even spacing 150mm).
- Final Check: Ensure no loose parts; Verify gear meshing (Nessun lacuna); Check curtain alignment (no tilt).
4.2.2 Test funzionali
Conduct comprehensive tests to validate performance:
- Test funzionali:
- Opening/Closing Test: Run curtain 100 volte (forward/reverse, speed 5-10cm/s, no stuck);
- Limit Control Test: Verify curtain stops automatically at track ends (response time ≤0.5s);
- Test di carico: Add 2kg weight to curtain (simulate heavy fabric), test normal operation (no motor overload);
- Control Test: Use remote/APP (se applicabile) to control curtain (response time ≤1s, no delay).
- Test di durabilità:
- Continuous Operation Test: Run curtain for 2 ore (intermittent, 5min on/1min off, no motor overheating);
- Vibration Test: Apply 10-500Hz vibration (acceleration 5m/s²) per 1 ora, check for loose parts;
- Environmental Test: Place in 0-40°C environment for 24 ore, funzionalità di prova (Nessun fallimento).
- Safety Testing:
- Insulation Test: Check control box for electric leakage (resistance ≥100MΩ);
- Overload Protection: Simulate motor jam, verify auto-stop (current ≤1.5A).
5. Application Scenarios of CNC Machined Electric Curtain Prototypes
CNC machined electric curtain prototypes serve multiple purposes in product development and market promotion:
| Scenario applicativo | Specific Uses | Advantage of CNC Machining |
| Product Design Verification | Test track smoothness, gear meshing, and limit control; Optimize structure (PER ESEMPIO., adjust track teeth module for lower noise). | Alta precisione (± 0,02 mm) ensures accurate simulation of mass production models; supports rapid iteration (modify 3D models, re-machine in 3-4 giorni). |
| Market Research | Display at home decor exhibitions; Collect user feedback on appearance (colore, track size) e funzionalità (noise level, control method); Adjust mass production plans. | Prototype appearance/functionality matches final products; attracts user attention (high-quality surface treatment). |
| Small-Batch Customization | High-end home customization (curved tracks, Colori personalizzati), hotel projects (uniform design); Produce ≤50 units without opening molds. | Flessibile (adapt to custom designs like curved tracks quickly); economico (nessuna spesa per lo stampo, lower than injection molding for small batches). |
| Educational Training | Disassemble to demonstrate transmission mechanism (gear-track meshing) and CNC machining principles; Suitable for mechanical engineering/industrial design teaching. | Clear internal structure (easy to observe components); sicuro (meets insulation standards, no electric shock risk). |
6. Key Precautions for CNC Machining Electric Curtain Prototypes
To ensure quality and efficiency, observe these precautions:
- Controllo di precisione: Strictly control track teeth accuracy (± 0,02 mm) and gear coaxiality (≤0.03mm) to avoid jamming; Reserve ±0.1mm tolerance for mounting holes to facilitate assembly.
- Material Adaptation: Lega di alluminio: Use cutting fluid to avoid overheating deformation; Pom: Control cutting speed (8000-12000 giri al minuto) per evitare lo scioglimento; Addominali: Dry before machining to avoid bubbles.
- Ottimizzazione dei costi: CNC machining is ideal for ≤100 units; per la produzione di massa (>1000 units), switch to injection molding (ABS/PC parts) ed estrusione (aluminum alloy tracks) to reduce cost by 50-60%. Simplify track design (PER ESEMPIO., replace complex curves with straight sections) to shorten toolpaths.
- Safety Operation: Wear safety glasses/gloves during machining; Use fume extractors for painting/anodization; Ground equipment to prevent electric shock when testing control modules.
Yigu Technology’s Viewpoint
Alla tecnologia Yigu, Crediamo CNC machining is the core to developing reliable electric curtain prototypes. It enables precise control of critical transmission components—from track inner teeth (±0.02mm accuracy) to gear coaxiality (≤0.03mm)—and supports rapid iteration, which is vital for balancing functionality (smooth operation, low noise) e durata (load-bearing, Resistenza alla corrosione) in electric curtains. When producing these prototypes, we focus on two core aspects: material-function matching (aluminum alloy for load-bearing tracks, POM for low-noise gears) e ottimizzazione del processo (spiral interpolation for tooth accuracy, multi-point fixtures for long tracks). By integrating strict quality control from design to testing, we help clients shorten development cycles by 25-30% and mitigate mass production risks. Guardando avanti, we will apply AI-driven parameter optimization to CNC machining, further improving efficiency while maintaining ±0.02mm precision for more refined electric curtain prototypes.