1. Usinage pré-CNC: Design and Preparation for Pet Feeder Prototypes
Avant de lancer Usinage CNC for the pet feeder prototype, Un stade de conception et de préparation systématique est essentiel pour répondre, sécurité, and pet-friendly requirements. Cette étape suit une séquence linéaire, avec des détails clés organisés dans le tableau ci-dessous.
| Étape de conception | Exigences clés | Matériaux recommandés |
| Analyse de la demande de produits | Core functions: Determine feeder type (automatic/manual), target pet (cat/dog), food bin capacity (1-3L); Additional features: timed dosing (0.5-2g per serving), moisture protection (sealed food bin), water storage compartment (facultatif); Sécurité: Pas de bords tranchants (pet mouth protection), Matériaux non toxiques; Reserve space for gear transmission system, moteur (DC 6V), Panneau de contrôle, and power port. | – |
| Conception structurelle | Split components: Food bin (upper/lower), base, gear box, fixed bracket, control panel shell; Optimize food flow path (no dead corners to avoid clogging); Design sealing grooves (width 2-3mm, depth 1-1.5mm) for moisture protection; Add anti-slip silicone pads (diameter 10mm) on base corners. | – |
| 3D Modélisation & Dessin | Utiliser le logiciel CAO (Solide, Et nx) to create 3D models (tolerance ±0.1mm for plastic, ±0.05mm for metal); Mark key dimensions: Food bin inner diameter (matches capacity), gear module (0.5-1), motor mounting hole (Φ25mm); Export 2D drawings (Dxf) with surface roughness requirements (Ra3.2 for food-contact parts). | – |
| Sélection des matériaux | Prioritize non-toxicity, se résistance à l'usure, et machinabilité, matching mass production standards. | Food Bin/Base: Plastique abs (non toxique, résistant à l'impact, épaisseur 2-3mm) or acrylic (transparent, easy to check food level); Gear Box/Fixed Bracket: Alliage ABS/PC (rigidité élevée, à l'usure); Engrenages: POM plastic (frottement faible, quiet transmission) or aluminum alloy (robuste); Control Panel Shell: Plastique PC (isolation, résistant aux rayures). |
| Prétraitement des matériaux | Couper les matières premières en flans (laisser une surépaisseur d'usinage de 0,5 à 1 mm): Abs / acrylique via la coupe laser, aluminum alloy via bandsaw; Alliage d'aluminium recuit (300-350° C pour 1-2 heures) Pour réduire le stress; Abs sec / acrylique (80-100° C pour 2-3 heures) Pour éliminer l'humidité (Empêche les bulles d'usinage); Clean blanks with alcohol to remove oil. | – |
2. CNC Machining Preparation for Pet Feeder Prototypes
Préparation adéquate avant l'usinage formel assure l'efficacité et la précision Usinage CNC for pet feeder prototypes. Cette section couvre la sélection des outils, paramètre, et conception de luminaire.
2.1 Sélection des matériaux et des outils
Le choix des matériaux et des outils affecte directement la qualité et l'efficacité de l'usinage. Le tableau ci-dessous fournit des recommandations détaillées:
| Catégorie | Options spécifiques | Scénarios d'application |
| Matériaux de logement | ABS plate (2-3MM), assiette en acrylique (2-3MM), ABS/PC alloy plate (1.5-2MM) | ABS for food bins/bases; acrylic for transparent food bins; ABS/PC for gear boxes. |
| Transmission Materials | POM rod (diameter 8-12mm), alliage en aluminium 6061 tige (diameter 10-15mm) | POM for low-noise gears; aluminum alloy for heavy-duty gears/shafts. |
| Outils d'usinage rugueux | Φ8-10mm flat-bottom cutter (ABS/acrylic), Φ6-8 mm Cutter à fond plat (alliage en aluminium) | Élimination rapide des matériaux pour les grands composants (food bin, base). |
| Outils de finition | Φ3-5mm ball-head cutter (bords courbes), Φ1-2mm Cutter de calcul des racines (dents de vitesse), Φ2-3 mm Bit de forage (trous de montage) | Assurer des surfaces lisses (Ra3.2) et des détails précis (dents de vitesse, motor holes). |
| Outils spéciaux | M3-M4 taps (trous filetés), gear milling cutter (module 0.5-1), graveur laser (control panel symbols) | Process assembly threads; machine gear teeth; graver “On/Off” ou “Dose” symboles. |
2.2 Parameter Setting and Fixture Design
Scientific parameter setting and stable fixtures prevent machining errors.
| Lien | Opérations clés | But & Effet |
| Paramètres de coupe | – ABS/Acrylic: Grande vitesse (10,000-20,000 RPM), feed rate 100-300mm/min, cutting depth 0.2-0.5mm (Évite la fissuration);- Alliage en aluminium: Medium speed (5,000-10,000 RPM), feed rate 50-200mm/min, cutting depth 0.1-0.2mm (Empêche l'usure des outils);- Pom: Grande vitesse (12,000-15,000 RPM), feed rate 200-400mm/min, cutting depth 0.3-0.6mm. | Ensure machining efficiency; avoid material damage or poor surface finish. |
| Conception de luminaire | – ABS/Acrylic: Use vacuum adsorption platform (même la pression, pas de rayures); for curved food bins, use custom jigs with soft pads.- Aluminum Alloy/POM: Use precision vise with rubber jaws (prevent surface damage); for small gears, use multi-point clamping fixtures.- Long components (Par exemple, fixed brackets): Use two-end support fixtures to avoid vibration. | Maintenir la stabilité de la pièce; Assurer une précision dimensionnelle (±0.05mm for key parts). |
3. Core CNC Machining Process for Pet Feeder Prototypes
Le formel Processus d'usinage CNC transforme les modèles de conception en parties physiques, with strict control over each step to ensure functionality and safety.
3.1 Usinage des composants principaux
Différents composants nécessitent des étapes d'usinage ciblées, comme détaillé ci-dessous:
| Composant | Étapes de brouillage | Étapes de finition |
| Food Bin (ABS/Acrylic) | 1. Contour extérieur de l'usine (matches design size, conserver une allocation de 0,5 mm);2. Mill inner cavity (depth 150-250mm for 1-3L capacity);3. Drill food outlet (Φ10-15mm) and motor mounting hole (Φ25mm). | 1. Smooth inner cavity walls (Ra3.2, prevent food clogging);2. Chanfreiner tous les bords (R1mm, pet-safe);3. Machine sealing grooves (width 2mm, profondeur 1mm) at bin bottom. |
| Gear Box (ABS/PC Alloy) | 1. Mill box shape (conserver une allocation de 0,5 mm);2. Mill gear cavity (size matches gear module);3. Cut motor shaft hole (Φ8-10mm). | 1. Parois creuses lisses (Ra3.2, reduce gear friction);2. Tap M3 threaded holes (for cover fixation);3. Deburr shaft hole (prevent gear jamming). |
| Engrenage (POM/Aluminum Alloy) | 1. Turn rod into cylindrical blank (diameter matches gear outer diameter, conserver une marge de 0,3 mm);2. Rough mill gear teeth (module 0.5-1, leave 0.1mm allowance). | 1. Finish mill gear teeth (tooth profile accuracy ±0.02mm);2. Polish gear surface (Ra0.8, quiet transmission);3. Machine keyway (width 2mm) for shaft connection. |
| Control Panel Shell (PC) | 1. Forme extérieure du moulin (conserver une allocation de 0,5 mm);2. Mill button holes (Φ5mm) and display cutout (20×10mm);3. Drill power port cutout (DC 6V size). | 1. Smooth inner walls (Ra3.2, easy to install PCB);2. Chamfer button holes (C0,5mm);3. Laser engrave function symbols (Par exemple, “Timer”). |
3.2 Usinage des détails clés
Critical details directly affect the prototype’s functionality and pet safety:
- Gear Tooth Machining: Use gear milling cutter with spiral interpolation to ensure tooth pitch accuracy (± 0,02 mm); Test meshing with mating gear (pas de brouillage, transmission noise ≤40dB).
- Food Outlet Machining: Taper the outlet (15° Angle) to avoid food accumulation; Ensure inner wall smoothness (Ra3.2) to prevent clogging with dry/wet food.
- Sealing Groove Machining: Control groove width (2MM) and depth (1MM) with tolerance ±0.05mm; Ensure groove uniformity (no depth deviation >0.03mm) to fit silicone gaskets (moisture protection, IPX4 standard).
- Edge Chamfering: All pet-contact parts (food bin edges, base corners) must be chamfered (R1mm) or rounded (R2mm) to avoid scratching pets’ mouths or paws.
3.3 Inspection de la qualité de l'usinage
Conduct in-process checks to ensure quality:
- Inspection dimensionnelle: Use digital calipers (outer dimensions, tolerance ±0.1mm for plastic, ±0.05mm for metal) and coordinate measuring machine (Cmm) (dents de vitesse, rainures d'étanchéité, tolérance ±0,03 mm).
- Surface Quality Check: Use surface roughness meter (Ra3.2 for food-contact parts, Ra6.3 for non-contact parts); Vérifiez les rayures (no visible scratches >0.3mm on acrylic) and burrs (pas de bords tranchants).
- Safety Test: Verify material non-toxicity (pass RoHS, FDA food-grade certifications); Check gear transmission (no sharp edges on teeth).
4. Post-Processing and Assembly of Pet Feeder Prototypes
Post-processing enhances safety and aesthetics, while precise assembly ensures functionality.
4.1 Traitement de surface
Different materials require targeted treatment to meet safety and design goals:
| Matériel | Méthode de traitement de surface | But & Effet |
| ABS/Acrylic (Food Bin) | Polissage + Anti-Scratch Coating | Polishing improves smoothness (prevents food sticking); anti-scratch coating (5-10µm) resists daily wear (no scratches after 500 steel wool tests). |
| POM/Aluminum Alloy (Engrenages) | Ebat à l'huile (Food-Grade Lubricant) | Réduit la friction (prolonge la durée de vie 30%) and transmission noise (≤40dB). |
| PC (Control Panel Shell) | Silk Screen + UV Curing | Silk screen prints function symbols (clear visibility); UV curing enhances wear resistance (no fading after 10,000 touche). |
| Alliage en aluminium (Fixed Bracket) | Anodisation (Black/Silver) | Améliore la résistance à la corrosion (salt spray test ≥48 hours); enhances texture. |
4.2 Assemblage et tests fonctionnels
Scientific assembly and strict testing ensure the prototype meets pet safety and functional requirements.
4.2.1 Processus d'assemblage
Follow this sequence to avoid errors:
- Vérification avant assemblage: Inspect all parts for defects (pas de rayures, dimensional deviation ≤0.1mm); Prepare auxiliary materials (silicone gaskets, non-toxic glue, lithium-based grease, vis).
- Component Installation:
- Gear Transmission Assembly: Apply lubricant to gears; Install gears into gear box (ensure meshing clearance 0.05-0.1mm); Connect motor to gear shaft (use keyway for fixation).
- Food Bin Assembly: Place silicone gasket in sealing groove; Fix upper/lower food bin with M3 screws (torque 0.8-1N·m); Install food outlet cover (snap-fit).
- Base & Control Panel Assembly: Mount gear box and fixed bracket on base (M4 screws, torque 1.2-1.5N·m); Install PCB in control panel shell; Connect motor, afficher, and power port to PCB.
- Final Check: Ensure no loose parts; Verify gear rotation (lisse, pas de brouillage); Check food bin sealing (pas de fuite d'air).
4.2.2 Tests fonctionnels
Conduct comprehensive tests to validate performance:
- Safety Tests:
- Non-Toxicity Test: Soak food-contact parts in water for 48 heures (heavy metal content ≤0.01mg/L);
- Impact Test: Drop base from 0.5m (foam pad, no structural damage, no sharp edges exposed);
- Moisture Protection Test: Place feeder in 90% humidity environment for 24 heures (no moisture in food bin).
- Tests fonctionnels:
- Timed Dosing Test: Set 0.5-2g servings (accuracy ±0.1g); Courir 100 cycles (no clogging);
- Gear Transmission Test: Run motor for 2 heures (pas de surchauffe, transmission noise ≤40dB);
- Power Test: Use DC 6V battery (continuous use time ≥72 hours for automatic mode).
- Pet Experience Tests:
- Food Flow Test: Use dry (3-5mm pellets) and wet food (paste-like) (no clogging);
- Accessibility Test: Simulate pet eating (no difficulty reaching food outlet, height ≤40mm).
5. Application Scenarios of CNC Machined Pet Feeder Prototypes
CNC machined pet feeder prototypes serve multiple purposes in product development and market promotion:
| Scénario d'application | Specific Uses | Advantage of CNC Machining |
| Product Design Verification | Test dosing accuracy, gear transmission, and moisture protection; Optimize structure (Par exemple, adjust food outlet size for different food types). | Haute précision (± 0,05 mm) ensures accurate simulation of mass production models; supports rapid iteration (modify 3D models, re-machine in 2-3 jours). |
| Market Research | Display at pet product exhibitions; Collect user feedback on appearance (transparent/non-transparent) et les fonctionnalités (timed dosing ease); Adjust mass production plans. | Prototype appearance/functionality match final products; attracts pet owners (pet-safe, high-quality design). |
| Personnalisation en petits lots | Pet shops (custom logos), high-end pet hotels (large-capacity bins); Produce ≤50 units without opening molds. | Flexible (adapt to custom sizes/colors quickly); rentable (pas de frais de moisissure, lower than injection molding for small batches). |
| Educational Training | Disassemble to demonstrate gear transmission principles, Processus d'usinage CNC; Suitable for industrial design/pet product development teaching. | Clear internal structure (easy to observe components); sûr (meets pet safety standards). |
6. Key Precautions for CNC Machining Pet Feeder Prototypes
Pour assurer la qualité, sécurité, et efficacité, observe these precautions:
- Safety Priority: All materials must be non-toxic (de qualité alimentaire); Avoid sharp edges (chamfer pet-contact parts to R1mm); Gears must have smooth teeth (no burrs to prevent pet injury).
- Contrôle de précision: Gear tooth tolerance ±0.02mm (ensures smooth transmission); Sealing groove tolerance ±0.05mm (moisture protection); Food outlet size accuracy ±0.1mm (prevents clogging).
- Optimisation des coûts: CNC machining is ideal for ≤100 units; Pour la production de masse (>1000 units), switch to injection molding (ABS/PC parts) to reduce cost by 50-60%. Simplify complex curves (Par exemple, replace irregular food bin shapes with cylinders) to shorten toolpaths.
- Protection de l'environnement: Use non-toxic, biodegradable coolants; Recycle metal/plastic scraps (Par exemple, alliage en aluminium, Abs).
Point de vue de la technologie Yigu
À la technologie Yigu, nous croyons CNC machining is the core to developing safe and functional pet feeder prototypes. It enables precise control of critical structures—from gear teeth (Précision de ±0,02 mm) to pet-safe chamfers (R1mm)—and supports rapid iteration, which is vital for balancing functionality (timed dosing, quiet transmission) and pet safety (non-toxicity, pas de bords tranchants). When producing these prototypes, we focus on two core aspects: material-function matching (POM for low-noise gears, food-grade ABS for bins) et l'optimisation du processus (spiral interpolation for gear teeth, vacuum adsorption for acrylic). By integrating strict quality control from design to testing, we help clients shorten development cycles by 20-25% and mitigate mass production risks. Regarder vers l'avenir, we will apply AI-driven parameter optimization to CNC machining, further improving efficiency while maintaining ±0.03mm precision for more reliable pet feeder prototypes.
FAQ
- What materials are best for CNC machined pet feeder prototype components, et pourquoi?
The best materials depend on components: ABS/PC alloy for gear boxes (rigidité élevée, à l'usure); POM plastic for gears (frottement faible, quiet); food-grade ABS/acrylic for food bins (non toxique, facile à nettoyer); aluminum alloy for fixed brackets (résistant à la corrosion). These materials balance machinability, fonctionnalité, and pet safety.