When developing a beauty instrument (such as ultrasonic skin scrubbers or RF lifting devices), the prototype process directly determines whether the product can meet precision requirements (like probe-skin fit) и функциональные потребности (like waterproofing). Among all prototyping methods, а CNC machining beauty instrument prototype process stands out for its high accuracy and functional validation capabilities—but what makes this process a top choice for beauty device R&Дюймовый? This article breaks down the core stages, преимущества, and key considerations of the CNC machining process for beauty instrument prototypes to solve common development challenges.
1. Core Advantages of the CNC Machining Beauty Instrument Prototype Process
The CNC machining process addresses unique demands of beauty instruments (НАПРИМЕР., delicate probes, transparent components). Below are its five irreplaceable advantages:
| Категория преимуществ | Specific Performance | Value for Beauty Instruments |
| Ultra-High Precision | Dimensional tolerance controlled within ± 0,05 мм, accurately reproducing probe curves, button positions, and LED display slots. | Ensures the probe’s skin contact gap is ≤0.1mm (avoids irritation or uneven energy delivery). |
| Diverse Material Compatibility | Processes plastics (АБС, ПК, акрил) and metals (алюминиевый сплав, цинк сплав, нержавеющая сталь) to match different component functions. | – Acrylic for transparent viewing windows (to check LED indicators).- Stainless steel for conductive probes (НАПРИМЕР., microcurrent devices).- Aluminum alloy for lightweight, high-end housings. |
| Complex Structure Machining | Handles thin walls (<1мм), глубокие полости (battery compartments), и изогнутые поверхности (Эргономичные захваты) that 3D printing struggles with. | Enables integrated machining of probe holders (thin walls to reduce weight) and waterproof sealing grooves (for IPX7 standards). |
| Functional Surface Treatment | Supports polishing, песчаная обработка, Анодирование, and laser engraving to simulate mass-production effects. | – Sandblasting on grips (improves anti-slip performance for wet use).- Anodizing on aluminum alloy housings (offers rose gold/silver finishes popular in beauty products). |
| Direct Functional Validation | Machines assembly structures (снимки, screw holes, bearing positions) for immediate prototype assembly and testing (НАПРИМЕР., probe vibration, гидроизоляция). | Cuts R&D time by 30%—no extra post-processing needed to fit components like circuit boards or motors. |
2. Step-by-Step Breakdown of the CNC Machining Beauty Instrument Prototype Process
The CNC machining process follows a linear, repeatable workflow to ensure consistency. It consists of 7 Ключевые этапы, each tailored to beauty instrument requirements:
- 3D Модель дизайн & Оптимизация
Используйте программное обеспечение CAD (Солидворкс / и) to design all components, включая:
- Probe parts: Ultrasonic/RF/microcurrent probe profiles (marked with ±0.03mm tolerance).
- Body structure: Grip curves, battery compartments, circuit board slots, and waterproof sealing grooves.
- Surface details: Противоскользящие узоры (0.2мм глубина), light-transmitting holes, and brand logos.
Mark material specifications (НАПРИМЕР., PC for LED covers) and assembly clearances (0.1-0,3 мм).
- Выбор материала & Подготовка
Choose materials based on component functions (См. Таблицу ниже), then cut raw materials into blanks (НАПРИМЕР., 100×80×50mm ABS blanks for housings).
| Тип компонента | Рекомендуемый материал | Ключевая причина |
| Probes (проводящий) | Нержавеющая сталь 304 | Ржавчатый, Хорошая электрическая проводимость. |
| Transparent Windows | Acrylic/PC | Высокая световая передача (≥90%) to display LED indicators. |
| Корпусы | ABS/Aluminum Alloy 6061 | – АБС: Бюджетный, easy to machine.- Алюминиевый сплав: Легкий вес, Премиальное чувство. |
| Декоративные детали | Цинк сплав | Strong die-cast texture, compatible with plating. |
- Программирование с ЧПУ & Выбор инструмента
Generate G-code toolpaths based on the 3D model, optimizing for beauty instrument-specific structures:
- Грубая: Use Φ10mm flat-bottom cutters to remove 90% избыточного материала, оставив а 0.2–0.5mm allowance (protects thin walls).
- Отделка: Use Φ2mm ball nose cutters for probe curves and Φ0.5mm engraving tools for logos/anti-slip patterns.
- Совет по оптимизации: Use high-speed milling (5,000–10 000 об/мин) for plastic parts to avoid surface melting.
- Зажим & Tool Setting
- Небольшие части (probes, кнопки): Fix with vacuum adsorption platforms (avoids deformation from fixture pressure).
- Большие части (корпусы): Clamp with bolt platens or custom fixtures.
- Use laser positioning or edge finders to set the workpiece coordinate system (ensures machining accuracy within ±0.01mm).
- Грубая обработка
Prioritize flat and large surfaces (НАПРИМЕР., housing exteriors, battery compartment bottoms) to quickly shape the part while maintaining stability for delicate details.
- Отделка
Focus on high-precision and user-centric details:
- Machine probe curves to Ra0.4 surface roughness (smooth skin contact).
- Cut waterproof sealing grooves (depth 2mm ±0.02mm) to fit rubber O-rings.
- Chamfer edges (C0.5–1mm) on grips and buttons (avoids sharp edges that irritate hands).
- Поверхностная обработка & Функциональное тестирование
| Тип теста | Цель | Pass Criteria for Beauty Instruments |
| Probe Vibration Test | Verify motor/vibration module efficiency (НАПРИМЕР., ultrasonic scrubbers). | Vibration frequency stable at 20,000–30,000 Hz; нет постороннего шума. |
| Waterproof Test | Check if the prototype meets IPX7 standards (common for washable devices). | No water ingress after 30-minute submersion in 1m water. |
| Temperature Control Test | Validate hot compress/cooling function accuracy (НАПРИМЕР., LED light therapy devices). | Temperature variation ≤±1°C from set value (avoids skin burns). |
| Assembly Test | Ensure easy disassembly for maintenance (НАПРИМЕР., battery replacement). | Battery cover removed in <10 секунды; no stuck snaps. |
- Поверхностная обработка: Polish acrylic windows (для ясности), anodize metal parts (для цвета), or laser-engrave logos (permanent and wear-resistant).
- Сборка: Fit components (probes, круговые платы, батареи, Уплотнительные кольца) into the prototype.
- Тестирование: Conduct critical functional checks (См. Таблицу ниже) для проверки производительности.
3. How Does the CNC Machining Process Compare to Traditional Prototyping Methods?
The CNC machining process outperforms 3D printing and silicone duplication in key metrics for beauty instruments. Here’s a direct comparison:
| Evaluation Metric | Процесс обработки с ЧПУ | 3D Печать | Silicone Duplication |
| Точность | ± 0,05 мм (ideal for probes) | ± 0,1–0,5 мм (risk of uneven probe-skin fit) | ± 0,2–0,5 мм (poor for functional parts) |
| Материал | Пластмассы + металлы (supports conductive/transparent parts) | Only filaments (Плата, АБС; no metal or high-transparency options) | Epoxy/resin (no metal compatibility; degrades in water) |
| Качество поверхности | Гладкий (Ra0.4–Ra3.2) with no post-processing | Layered texture (требует шлифовки; affects skin contact) | Smooth but lacks fine details (can’t replicate anti-slip patterns) |
| Functional Use | Ready for assembly/testing (НАПРИМЕР., гидроизоляция) | Needs drilling/tapping to fit components (no immediate testing) | Только для проверки внешнего вида (no functional validation) |
| Экономическая эффективность (10+ Единицы) | Lower per-unit cost (reusable programs) | Выше (материальные отходы + пост-обработка) | Выше (silicone mold degradation after 5–8 uses) |
4. Key Precautions for the CNC Machining Beauty Instrument Prototype Process
To avoid common flaws (НАПРИМЕР., thin-wall deformation, probe inaccuracy), follow these four critical precautions:
- Thin-Wall & Deep-Cavity Protection
Для тонкостенных деталей (НАПРИМЕР., 0.8mm probe holders) or deep cavities (НАПРИМЕР., 20mm battery compartments), use layered cutting (0.1mm per layer) and reduce cutting force (≤300N) Чтобы предотвратить деформацию.
- Probe Accuracy Calibration
После обработки, Используйте координату измерительную машину (ШМ) to check probe dimensions. If the skin contact gap exceeds 0.1mm, perform secondary grinding to ensure precision.
- Plastic Material Shrinkage Compensation
Plastics like ABS have a shrinkage rate of ~0.5%. During programming, Добавить 0.5% margin to dimensions (НАПРИМЕР., a 100mm housing is machined to 100.5mm) to ensure final size matches design.
- Surface Texturing Optimization
- For anti-slip patterns: Use CNC engraving (высокая точность) for small areas (схватки) or laser etching (Быстрее) for fine textures.
- For color logos: Use printing or film (рентабельный) instead of CNC engraving (time-consuming) to reduce lead time.
5. Yigu Technology’s Perspective on the CNC Machining Beauty Instrument Prototype Process
В Yigu Technology, we believe the CNC machining beauty instrument prototype process is the backbone of reliable beauty device R&Дюймовый. Its ±0.05mm precision solves two core pain points: probe-skin fit (critical for user safety) and waterproof sealing (a must for washable devices)—issues 3D printing can’t address. Например, a client’s RF beauty instrument prototype used our CNC process: we machined stainless steel probes (± 0,03 мм толерантность) and aluminum alloy housings (anodized rose gold), which passed IPX7 tests and reduced R&D время за 25%. We recommend combining CNC with 3D printing (for non-critical decor parts) чтобы сбалансировать стоимость и производительность. В конечном счете, the CNC process validates design flaws early, снижение рисков массового производства.
Часто задаваемые вопросы
- How long does the CNC machining beauty instrument prototype process take?
It takes 7–15 days, в зависимости от сложности: Простые части (НАПРИМЕР., ABS housings) Возьмите 7–10 дней, в то время как сложные дизайны (НАПРИМЕР., multi-material prototypes with probes + transparent windows) take 12–15 days (including surface treatment and testing).
- What’s the cost range for a prototype using this process?
The cost ranges from 600 к 3,000 юаней за единицу: Пластические прототипы (ABS/PC) cost 600–1,500 yuan, while metal prototypes (aluminum alloy/stainless steel probes) cost 1,500–3,000 yuan (due to higher material and machining costs).
- Can this process handle custom-shaped probes for specialized beauty instruments?
Yes—we use 5-axis CNC machines to machine custom probe curves (НАПРИМЕР., curved RF probes for facial contours) with ±0.03mm tolerance. После обработки, we perform surface polishing to ensure smooth skin contact, meeting even the most specialized design needs.