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+104
-25
@@ -507,10 +507,27 @@ async def process_file_core(
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surface_area_mm2 = geometry_data.get("surface_area", 0)
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bbox = geometry_data.get("bounding_box", {})
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bbox_dims = bbox.get("dimensions", [0, 0, 0])
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# 材料属性（可根据用户选择或自动检测）
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material_properties = {
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"ABS": {"density": 1.05, "shrinkage": 0.005, "name": "ABS"},
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"PP": {"density": 0.90, "shrinkage": 0.016, "name": "PP"},
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"PE": {"density": 0.95, "shrinkage": 0.020, "name": "PE"},
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"PC": {"density": 1.20, "shrinkage": 0.007, "name": "PC"},
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"PA": {"density": 1.14, "shrinkage": 0.010, "name": "PA"},
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"POM": {"density": 1.41, "shrinkage": 0.020, "name": "POM"},
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"PMMA": {"density": 1.18, "shrinkage": 0.005, "name": "PMMA"},
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"PBT": {"density": 1.31, "shrinkage": 0.015, "name": "PBT"},
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}
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# 默认使用 ABS
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selected_material = material_properties["ABS"]
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material_density = selected_material["density"]
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shrinkage_rate = selected_material["shrinkage"]
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# 计算产品重量（ABS密度：1.05 g/cm³）
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# 计算产品重量
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volume_cm3 = volume_mm3 / 1000
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product_weight_g = volume_cm3 * 1.05
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product_weight_g = volume_cm3 * material_density
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# 计算投影面积（取X、Y方向）
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if len(bbox_dims) >= 2:
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@@ -518,8 +535,40 @@ async def process_file_core(
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else:
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projected_area_cm2 = 0
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# 计算夹紧力（投影面积 × 注塑压力600 kg/cm²，转换为吨）
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clamping_force_ton = int(projected_area_cm2 * 600 / 1000)
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# 计算最优型腔数量
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# 基于产品重量和投影面积计算
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# 小产品（< 100g）可以多型腔，大产品（> 1000g）通常单型腔
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if product_weight_g < 50:
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cavity_count = 8 # 小产品，多型腔
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elif product_weight_g < 100:
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cavity_count = 4 # 中小产品
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elif product_weight_g < 300:
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cavity_count = 2 # 中等产品
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elif product_weight_g < 1000:
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cavity_count = 1 # 较大产品
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else:
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cavity_count = 1 # 大产品，单型腔
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# 根据投影面积调整型腔数量
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# 如果单型腔投影面积超过 400 cm²，减少型腔数量
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single_cavity_area = projected_area_cm2
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if single_cavity_area > 400:
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cavity_count = 1
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elif single_cavity_area > 200 and cavity_count > 2:
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cavity_count = 2
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# 计算总投影面积（包括流道系统）
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# 流道系统约占型腔投影面积的 15-25%
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runner_ratio = 0.20
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total_projected_area = single_cavity_area * cavity_count * (1 + runner_ratio)
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# 计算夹紧力（总投影面积 × 注塑压力 / 1000 吨）
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# 注塑压力根据材料选择：ABS 约 600-800 kg/cm²
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injection_pressure = 700 # kg/cm²
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clamping_force_ton = int(total_projected_area * injection_pressure / 1000)
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# 确保夹紧力在合理范围内
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clamping_force_ton = max(50, min(clamping_force_ton, 3000))
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# 计算壁厚范围
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if surface_area_mm2 > 0 and volume_mm3 > 0:
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@@ -537,29 +586,55 @@ async def process_file_core(
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else:
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complexity_score = 0.5
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# 计算模具尺寸（基于产品尺寸 + 模具边距）
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mold_length = max(bbox_dims[0] if len(bbox_dims) > 0 else 120, 120) + 40
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mold_width = max(bbox_dims[1] if len(bbox_dims) > 1 else 100, 100) + 40
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mold_height = max(bbox_dims[2] if len(bbox_dims) > 2 else 60, 60) + 50
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# 计算模具尺寸（基于型腔布局）
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# 单型腔：产品尺寸 + 边距
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# 多型腔：需要考虑型腔排列
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cavity_spacing = 30 # 型腔间距 mm
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edge_margin = 50 # 边缘余量 mm
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if cavity_count == 1:
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mold_length = max(bbox_dims[0] if len(bbox_dims) > 0 else 120, 120) + 2 * edge_margin
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mold_width = max(bbox_dims[1] if len(bbox_dims) > 1 else 100, 100) + 2 * edge_margin
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elif cavity_count == 2:
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# 2型腔：并排排列
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mold_length = 2 * max(bbox_dims[0] if len(bbox_dims) > 0 else 120, 120) + cavity_spacing + 2 * edge_margin
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mold_width = max(bbox_dims[1] if len(bbox_dims) > 1 else 100, 100) + 2 * edge_margin
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elif cavity_count == 4:
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# 4型腔：2x2 排列
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mold_length = 2 * max(bbox_dims[0] if len(bbox_dims) > 0 else 120, 120) + cavity_spacing + 2 * edge_margin
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mold_width = 2 * max(bbox_dims[1] if len(bbox_dims) > 1 else 100, 100) + cavity_spacing + 2 * edge_margin
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else:
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# 8型腔：2x4 排列
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mold_length = 4 * max(bbox_dims[0] if len(bbox_dims) > 0 else 120, 120) + 3 * cavity_spacing + 2 * edge_margin
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mold_width = 2 * max(bbox_dims[1] if len(bbox_dims) > 1 else 100, 100) + cavity_spacing + 2 * edge_margin
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mold_height = max(bbox_dims[2] if len(bbox_dims) > 2 else 60, 60) + 80 # 包含冷却系统
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# 计算分型线长度（基于产品周长）
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# 计算分型线长度（基于型腔布局）
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if len(bbox_dims) >= 2:
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parting_line_length = 2 * (bbox_dims[0] + bbox_dims[1])
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single_parting_line = 2 * (bbox_dims[0] + bbox_dims[1])
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parting_line_length = single_parting_line * cavity_count
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else:
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parting_line_length = 0
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# 估算成型周期（基于体积）
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# 估算成型周期（基于体积和壁厚）
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# 周期 = 冷却时间 + 注塑时间 + 开合模时间
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cooling_time = (wall_thickness_max ** 2) * 5 # 简化公式
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injection_time = max(5, volume_cm3 / 50) # 注塑时间
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cycle_time = cooling_time + injection_time + 8 # 开合模约8秒
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cooling_time = (wall_thickness_max ** 2) * 4 # 冷却时间与壁厚平方成正比
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injection_time = max(3, volume_cm3 / 100) # 注塑时间
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ejection_time = 3 # 顶出时间
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cycle_time = cooling_time + injection_time + ejection_time + 5 # 开合模约5秒
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# 根据型腔数量调整周期（多型腔需要更长冷却时间）
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if cavity_count > 1:
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cycle_time = cycle_time * (1 + 0.1 * (cavity_count - 1))
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detailed_cavity_json = {
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"metadata": {
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"file_name": Path(file_path).name,
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"analysis_date": datetime.now().isoformat(),
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"shrinkage_rate": 0.005,
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"draft_angle": 2.0
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"shrinkage_rate": shrinkage_rate,
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"draft_angle": 2.0,
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"selected_material": selected_material["name"]
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},
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"product_analysis": {
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"volume": volume_mm3,
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@@ -567,32 +642,36 @@ async def process_file_core(
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"bounding_box": bbox
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},
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"manufacturing_info": {
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"recommended_material": "ABS",
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"recommended_material": selected_material["name"],
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"material_density": f"{material_density} g/cm³",
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"estimated_clamping_force": f"{clamping_force_ton} 吨",
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"estimated_mold_size": {
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"length": int(mold_length),
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"width": int(mold_width),
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"height": int(mold_height)
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},
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"mold_material": "铝合金7075",
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"mold_hardness": "HB 150-170",
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"mold_material": "铝合金7075" if clamping_force_ton < 200 else "P20钢材",
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"mold_hardness": "HB 150-170" if clamping_force_ton < 200 else "HRC 28-32",
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"surface_finish": "Ra 0.8 μm",
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"parting_line_length": f"{parting_line_length:.2f} mm",
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"estimated_cycle_time": f"{int(cycle_time)} 秒"
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"estimated_cycle_time": f"{int(cycle_time)} 秒",
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"injection_pressure": f"{injection_pressure} kg/cm²"
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},
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"mold_cavities": {
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"cavity_count": 1,
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"cavity_count": cavity_count,
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"cavity_layout": "single" if cavity_count == 1 else f"{cavity_count} cavities",
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"cavity_key_info": {
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"geometric_characteristics": {
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"product_weight": f"{product_weight_g:.2f} g",
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"wall_thickness_range": f"{wall_thickness_min:.2f} - {wall_thickness_max:.2f} mm",
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"complexity_score": round(complexity_score, 2),
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"product_volume": f"{volume_cm3:.2f} cm³"
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"product_volume": f"{volume_cm3:.2f} cm³",
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"projected_area": f"{projected_area_cm2:.2f} cm²"
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},
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"quality_considerations": {
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"potential_weld_lines": "center",
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"sink_mark_areas": "thick_sections",
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"warpage_risk": "low"
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"potential_weld_lines": "center" if cavity_count > 1 else "minimal",
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"sink_mark_areas": "thick_sections" if wall_thickness_max > 4 else "minimal",
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"warpage_risk": "medium" if wall_thickness_max > 5 else "low"
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}
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}
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}
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