1. Usinage pré-CNC: Design Foundation for Prototypes
Avant de commencer Usinage CNC, a solid design stage is essential to ensure the prototype meets functional and structural requirements. This stage involves four core steps, each with clear objectives and materials.
Étape de conception | Exigences clés | Matériaux recommandés |
Analyse de la demande de produits | Achieve constant temperature (40-50° C), adjustable temperature, timing function; reserve space for heating elements, capteurs, cartes de circuits imprimées, et compartiments à piles. | – |
Conception structurelle | Create an ergonomic curved shell to fit eye contours; design detachable enclosures (snaps/screws) for easy internal component assembly. | – |
Sélection des matériaux | Prototype materials should align with mass production standards. | Logement: Plastique abs (easy to process/dye), PC (clear/matte), alliage en aluminium (haut de gamme); Heating element: Thin metal sheet, electric heating film; Internal support: Abs, acrylique. |
3D Modélisation & Dessin | Generate 3D models with dimensional tolerances (Par exemple, shell thickness 1.5-2mm, gap 0.5mm); export STL (pour l'impression 3D) or 2D files (DXF/DWG for CNC machining). | – |
2. Core CNC Machining Process for Eye Instrument Prototypes
Le Processus d'usinage CNC transforms design drawings into physical parts. It requires precise material preparation, step-by-step execution, and strict process control to ensure accuracy and functionality.
2.1 Préparation des matériaux: Choisissez la bonne base
The choice of material directly affects the prototype’s performance and appearance. Below is a comparison of common materials for plastic and metal parts:
Type de matériau | Possibilités | Gamme d'épaisseur | Scénarios d'application |
Pièces en plastique | ABS plate/rod | 1.5-3MM | Main housing (rentable, Facile à machine) |
Pièces métalliques | Aluminum alloy plate, plaque en acier inoxydable | Depends on design | Heat dissipation structures, pièces décoratives (durabilité élevée) |
2.2 Step-by-Step CNC Machining Execution
Follow this linear process to ensure consistent and high-quality machining:
- Programmation & Planification des chemins: Utiliser le logiciel CAM (Mastercam, Moulin électrique) to generate tool paths. Set parameters like safety height, vitesse d'avance, et profondeur de coupe. Utiliser des outils de grand diamètre (Par exemple, φ6mm flat cutters) pour rupture (enlèvement de matière rapide) and small-diameter tools (Par exemple, φ0.5mm ball cutters) pour finir (detail preservation).
- Serrage & Positionnement: Secure materials with a vise or vacuum cup to prevent displacement. For symmetrical structures, calibrate the center position to ensure left-right consistency.
- Exécution d'usinage:
- Logement: Mill the shape layer by layer, retaining buttons, display openings, and heat dissipation holes.
- Structure interne: Mill battery compartments, circuit board slots, and heating element fixing positions.
- Traitement de surface: Achieve matte or glossy finishes via high-speed finishing (avoids secondary polishing).
2.3 Critical Process Control
To meet prototype standards, focus on two key controls:
- Contrôle de la tolérance: Enclosure size tolerance is strictly controlled at ±0.1mm to ensure proper assembly with internal components.
- Temperature Simulation: For heating functions, machine grooves or thermal columns inside the enclosure to optimize heat conduction paths.
3. Après l'achat: Traitement de surface & Assemblée
Après l'usinage CNC, post-processing and assembly turn individual parts into a functional prototype.
3.1 Traitement de surface: Améliorer l'esthétique & Fonctionnalité
Different part materials require specific surface treatments to improve usability and appearance:
Type de pièce | Méthode de traitement | But & Effet |
Pièces en plastique | Pulvérisation | Apply matte paint (non-slip) or piano paint (high-gloss); use soothing colors (bleu clair, off-white). |
Silk Screen | Print brand logos and operation icons (Par exemple, “+” “-” for temperature control) on the shell surface. | |
Pièces métalliques | Anodisation | Améliorer la résistance à la corrosion. |
Sable | Enhance tactile feel. |
3.2 Component Testing & Assemblée
Follow this checklist to ensure the prototype works properly:
- Vérification fonctionnelle:
- Install analog heating plates (Par exemple, electric heating films) to test temperature control circuit response speed and temperature uniformity.
- Debug timing functions (Par exemple, 5-minute automatic shutdown); check button feel and LED indicator light transmission.
- Processus d'assemblage:
- Attach the circuit board, batterie, and heating element to the internal bracket; connect wires.
- Assemble the housing and cover with screws or snaps to ensure a tight seal (prevents dust entry).
4. Optimisation des prototypes & Itération
Aucun prototype n'est parfait sur le premier essai. Gather feedback and make targeted improvements to enhance performance and user experience.
Problem Feedback | Improvement Direction |
Housing edge chamfers are not smooth (affects touch comfort). | Optimize housing curvature to reduce eye area oppression. |
Local overheating (poor heating efficiency). | Adjust internal air duct design to improve heat dissipation. |
Inconvenient charging. | Add magnetic charging ports (Par exemple, Type-C) to enhance user experience. |
5. Livraison & Subsequent Applications
A well-made prototype serves multiple purposes and provides valuable data for mass production.
- Display Purposes: Use the prototype for marketing promotions, customer presentations, and appearance verification (ensures the design meets market expectations).
- Data Inheritance: Share CNC machining parameters and problem records with the mass production team to optimize injection mold design or metal die-casting processes (reduces mass production risks).
6. Common Technical Difficulties & Solutions
During CNC machining and prototype production, you may encounter technical issues. Here are practical solutions:
Difficulté technique | Solution |
Low accuracy when machining complex surfaces. | Use 4-axis/5-axis CNC machines with high-precision tools (Par exemple, Outils enrobés de diamant). |
Uneven temperature control in the prototype. | Machine heat transfer grooves inside the enclosure or use thin heating plates with aluminum heat sinks. |
Plastic housing is prone to deformation. | Choose high-strength ABS or PC materials; optimize heat treatment (Par exemple, recuit). |
Poor button feel. | Design silicone button pads or raised buttons; increase button travel space during CNC machining. |
Point de vue de la technologie Yigu
À la technologie Yigu, nous croyons CNC machining is the cornerstone of high-quality electric heating compress eye instrument prototypes. It bridges design concepts and physical products, Assurer chaque détail (from tolerance control to surface finish) aligns with user needs. When creating such prototypes, we prioritize material compatibility (matching mass production standards) and functional verification (especially temperature stability, a core feature of eye instruments). By combining precise CNC machining with iterative optimization, we help clients reduce development cycles and improve product market adaptability. Aller de l'avant, we will integrate more intelligent technologies (Par exemple, AI-driven machining path optimization) to further enhance prototype accuracy and production efficiency.
FAQ
- What is the ideal temperature range for the electric heating compress eye instrument prototype, and how does CNC machining support this?
The ideal temperature range is 40-50°C. CNC machining supports this by creating precise internal grooves/thermal columns (optimizing heat conduction) and ensuring tight assembly (preventing heat loss), which helps maintain temperature uniformity.
- Can CNC machined prototypes for electric heating eye instruments be directly used for small-batch production?
Dans la plupart des cas, Non. CNC machined prototypes are mainly for design verification and functional testing. Pour la production de petit lot, you need to switch to more cost-effective processes (Par exemple, injection molding for plastic parts) based on prototype data.
- How long does it take to produce a CNC machined electric heating compress eye instrument prototype?
It depends on design complexity and material type. Typiquement, the process (from design finalization to prototype assembly) prendre des prises 7-14 jours. Simple designs with plastic parts may take 5-7 jours, while complex designs with metal parts (and multiple iterations) peut prendre 2-3 semaines.